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Select a rating to filter the reviews.

4.8

5 out of 5

98 reviews

100% would recommend this product

Customer photos

1-15 of 98 reviews

  • 5 out of 5

    Favorite toy for my kiddos

    by

    [This review was collected as part of a promotion.] These are the best building toys! All three of my kids (4,8,9) love to play with them. There are so many things you can build with them. They play in the tub with them, bring them outside and play all around the house. The quality is top notch and they are extremely durable and easy to clean.

    Mattel Shop
  • 5 out of 5

    Just the right size for toddlers

    by

    [This review was collected as part of a promotion.] My granddaughter loves building blocks. She was so happy when I gave her these. They are the perfect size for her, especially since she is only 2. I did receive this for free in exchange for my honest review

    Mattel Shop

    I recommend this product

  • 5 out of 5

    great for motor skills

    by

    [This review was collected as part of a promotion.] we use these with the truck and independently. it’s helped with motor skills and coordination. i love that there are many different sizes/types of blocks to choose from so you have lots of options for building items

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Perfect bloks for tiny hands

    by

    [This review was collected as part of a promotion.] First Builders Big Building Bag is great for little hands. The bloks are easy to put together and take apart. The colors hold my childs interest and allows her to build anything she can imagine. I like the the blocks come in an easy storage bag. I can take the bag with me when I need to give her something to hold her interest other than at home while she is playing.

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Awesome building materials!

    by

    [This review was collected as part of a promotion.] These blocks are some of my favorite for kids of all ages!! My 5 year old loves them, and some of his favorite things to build are garages for his cars, and huge towers! The color selection is amazing, and his favorite blocks are definitely the orange "flags" to put on top of his creations!

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Always the best choice

    by

    [This review was collected as part of a promotion.] As always, mega blocks never fail. There are so many things you can build and always encourages creativity and imagination. I love that you can combine these with any other set and they all go together regardless of color. They always bring the fun for hours without fail.

    Mattel Shop
  • 5 out of 5

    Creative building blocks!

    by

    [This review was collected as part of a promotion.] The First Builders Big Building Bag do not disappoint! The colors are vibrant, the blocks and easy to stack and the size is perfect for little hands. My little ones love to use these blocks to bring their creativity to life. From imaginary houses to skyscrapers buildings, it’s hours and hours of fun. I love that it comes with the storage bag, so it is easy to encourage clean up after playtime. Mega blocks are mega fun!!!

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Perfect for little hands and big imaginations

    by

    [This review was collected as part of a promotion.] These blocks were given to my 4 year old grandson. He opened them and he was so excited. He loves to use anything to build. They are perfect size for little hands and they connect to each other easily.

    Mattel Shop

    I recommend this product

  • 4 out of 5

    Mega blocks fun

    by

    [This review was collected as part of a promotion.] We love playing with the blocks. They do seem rather flimsy to me and not as sturdy as I would hope. My granddaughter loves the colors but has trouble with the building. Not the quality I expect from FP all the time but it’s the first mega block set iPhone.

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Big blocks building fun

    by

    [This review was collected as part of a promotion.] My child and i received the first builders Big building mega blocks set. My daughter absolutely loves stuff and these blocks are perfect for little hands to do just that. With their vibrant colors they are sure to stand out, and the bag is perfect for storage and to take on the go. My kids like to take them everywhere and play with just about anyone who wants to join in on the fun. Big blocks allow kids to work together and use creativity in learning how to build. building Possibilities are endless and they provide hours of fun for everyone! These blocks are the perfect starter set for toddlers to use their imagination and work on hand eye coordination as well

    Mattel Shop
  • 5 out of 5

    Let's build

    by

    [This review was collected as part of a promotion.] These blocks are bright in color that grabs your attention. The jumbo size are great for little hands. They are very durable and easy to use to build things with. They have become my daughter new favorite toy.

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Keeps my toddler busy!

    by

    [This review was collected as part of a promotion.] My 16 month old baby loves her mega blocks! She is learning her colors and how to count with them. She loves taking her bag out and pouring the blocks on the floor! She’s learning to create and dismantle on her own! I love these!

    Mattel Shop
  • 5 out of 5

    Greta you

    by

    [This review was collected as part of a promotion.] This is a great on the go toy! They bag is a perfect size with the perfect amount for my kids to share and play together. They are able to take this to play at their grandmas and then simply pack it up and go!

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Fun to built and use as an educational tool

    by

    [This review was collected as part of a promotion.] This Mega Blocks First Builders Big Building bag was a gift for my 4 year old who is almost 5. He loves to build various things but too little for small pieces of legos. This 80 piece set is perfect for his age group or younger. I used these blocks as an educational tool and creative thinking for him. From the most amount to the littlest, from how many different colors there are to math problems. I love the bag that came with this, great for storing them away rather than all over the house. Great way to teach clean up and most of all it's fun to see where my son's imagination will take him when building something. Hours of fun, even older brother joined in on the fun! This set makes a great gift for a birthday, holiday, special treat or just because! They are easy to connect and easy for him to explore different types of blocks.

    Mattel Shop
  • 5 out of 5

    Great blocks

    by

    [This review was collected as part of a promotion.] Best first blocks for young children. Large and easy to hold. Easy to connect together to make building things fun. Durable when thrown and carried all over the house. Love the bags to store them in and makes traveling with them convenient. These blocks go everywhere with us. Also very easy to clean and sanitize.

    Mattel Shop

    I recommend this product

Select a rating to filter the reviews.

4.8

5 out of 5

98 reviews

100% would recommend this product

Customer photos

1-15 of 98 reviews

  • 5 out of 5

    Favorite toy for my kiddos

    by

    [This review was collected as part of a promotion.] These are the best building toys! All three of my kids (4,8,9) love to play with them. There are so many things you can build with them. They play in the tub with them, bring them outside and play all around the house. The quality is top notch and they are extremely durable and easy to clean.

    Mattel Shop
  • 5 out of 5

    Just the right size for toddlers

    by

    [This review was collected as part of a promotion.] My granddaughter loves building blocks. She was so happy when I gave her these. They are the perfect size for her, especially since she is only 2. I did receive this for free in exchange for my honest review

    Mattel Shop

    I recommend this product

  • 5 out of 5

    great for motor skills

    by

    [This review was collected as part of a promotion.] we use these with the truck and independently. it’s helped with motor skills and coordination. i love that there are many different sizes/types of blocks to choose from so you have lots of options for building items

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Perfect bloks for tiny hands

    by

    [This review was collected as part of a promotion.] First Builders Big Building Bag is great for little hands. The bloks are easy to put together and take apart. The colors hold my childs interest and allows her to build anything she can imagine. I like the the blocks come in an easy storage bag. I can take the bag with me when I need to give her something to hold her interest other than at home while she is playing.

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Awesome building materials!

    by

    [This review was collected as part of a promotion.] These blocks are some of my favorite for kids of all ages!! My 5 year old loves them, and some of his favorite things to build are garages for his cars, and huge towers! The color selection is amazing, and his favorite blocks are definitely the orange "flags" to put on top of his creations!

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Always the best choice

    by

    [This review was collected as part of a promotion.] As always, mega blocks never fail. There are so many things you can build and always encourages creativity and imagination. I love that you can combine these with any other set and they all go together regardless of color. They always bring the fun for hours without fail.

    Mattel Shop
  • 5 out of 5

    Creative building blocks!

    by

    [This review was collected as part of a promotion.] The First Builders Big Building Bag do not disappoint! The colors are vibrant, the blocks and easy to stack and the size is perfect for little hands. My little ones love to use these blocks to bring their creativity to life. From imaginary houses to skyscrapers buildings, it’s hours and hours of fun. I love that it comes with the storage bag, so it is easy to encourage clean up after playtime. Mega blocks are mega fun!!!

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Perfect for little hands and big imaginations

    by

    [This review was collected as part of a promotion.] These blocks were given to my 4 year old grandson. He opened them and he was so excited. He loves to use anything to build. They are perfect size for little hands and they connect to each other easily.

    Mattel Shop

    I recommend this product

  • 4 out of 5

    Mega blocks fun

    by

    [This review was collected as part of a promotion.] We love playing with the blocks. They do seem rather flimsy to me and not as sturdy as I would hope. My granddaughter loves the colors but has trouble with the building. Not the quality I expect from FP all the time but it’s the first mega block set iPhone.

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Big blocks building fun

    by

    [This review was collected as part of a promotion.] My child and i received the first builders Big building mega blocks set. My daughter absolutely loves stuff and these blocks are perfect for little hands to do just that. With their vibrant colors they are sure to stand out, and the bag is perfect for storage and to take on the go. My kids like to take them everywhere and play with just about anyone who wants to join in on the fun. Big blocks allow kids to work together and use creativity in learning how to build. building Possibilities are endless and they provide hours of fun for everyone! These blocks are the perfect starter set for toddlers to use their imagination and work on hand eye coordination as well

    Mattel Shop
  • 5 out of 5

    Let's build

    by

    [This review was collected as part of a promotion.] These blocks are bright in color that grabs your attention. The jumbo size are great for little hands. They are very durable and easy to use to build things with. They have become my daughter new favorite toy.

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Keeps my toddler busy!

    by

    [This review was collected as part of a promotion.] My 16 month old baby loves her mega blocks! She is learning her colors and how to count with them. She loves taking her bag out and pouring the blocks on the floor! She’s learning to create and dismantle on her own! I love these!

    Mattel Shop
  • 5 out of 5

    Greta you

    by

    [This review was collected as part of a promotion.] This is a great on the go toy! They bag is a perfect size with the perfect amount for my kids to share and play together. They are able to take this to play at their grandmas and then simply pack it up and go!

    Mattel Shop

    I recommend this product

  • 5 out of 5

    Fun to built and use as an educational tool

    by

    [This review was collected as part of a promotion.] This Mega Blocks First Builders Big Building bag was a gift for my 4 year old who is almost 5. He loves to build various things but too little for small pieces of legos. This 80 piece set is perfect for his age group or younger. I used these blocks as an educational tool and creative thinking for him. From the most amount to the littlest, from how many different colors there are to math problems. I love the bag that came with this, great for storing them away rather than all over the house. Great way to teach clean up and most of all it's fun to see where my son's imagination will take him when building something. Hours of fun, even older brother joined in on the fun! This set makes a great gift for a birthday, holiday, special treat or just because! They are easy to connect and easy for him to explore different types of blocks.

    Mattel Shop
  • 5 out of 5

    Great blocks

    by

    [This review was collected as part of a promotion.] Best first blocks for young children. Large and easy to hold. Easy to connect together to make building things fun. Durable when thrown and carried all over the house. Love the bags to store them in and makes traveling with them convenient. These blocks go everywhere with us. Also very easy to clean and sanitize.

    Mattel Shop

    I recommend this product

Product Code: 124012
  • Includes 80 big blocks and special shapes designed for durability and easy handling
  • 1x reusable storage bag for easy clean-up
  • Compatible with all MEGA BLOKS® building toys
  • Suitable for 1 year +
  • Supports imagination and fine motor skill development

Build, stack and explore endless construction possibilities.

Your little one can create anything they imagine with this large set of 80 big blocks and special shapes in classic colours. From tall towers and castles to funny animals, the play possibilities are open-ended. Designed for little hands, the blocks fit together and come apart easily, supporting fine motor skill development while encouraging creative play. When playtime’s over, pack everything away in the handy storage bag for simple clean-up.

Product Code: 124012
  • Includes 80 big blocks and special shapes designed for durability and easy handling
  • 1x reusable storage bag for easy clean-up
  • Compatible with all MEGA BLOKS® building toys
  • Suitable for 1 year +
  • Supports imagination and fine motor skill development

Build, stack and explore endless construction possibilities.

Your little one can create anything they imagine with this large set of 80 big blocks and special shapes in classic colours. From tall towers and castles to funny animals, the play possibilities are open-ended. Designed for little hands, the blocks fit together and come apart easily, supporting fine motor skill development while encouraging creative play. When playtime’s over, pack everything away in the handy storage bag for simple clean-up.

Package Dimension (cm)15H x 32.5L x 37.5W
Package Weight (kg)1.48
Country Of OriginCANADA
Package Dimension (cm)15H x 32.5L x 37.5W
Package Weight (kg)1.48
Country Of OriginCANADA

We offer an exchange, store credit or refund within 30 days of purchase or, an exchange or store credit after 30 days. For members of BBfamily, it's extended to 60 days. Terms and conditions apply. 

Excluded from returns:

  • Clearance and discontinued items
  • Infant formula and food
  • Toilet training items
  • Underwear and swimwear
  • Items sold in unsealed packaging designed for close skin contact
  • Baby Bunting Gift Cards
  • Marketplace items (each seller has their own policy)

View our full Change of Mind Returns Policy here.

We offer an exchange, store credit or refund within 30 days of purchase or, an exchange or store credit after 30 days. For members of BBfamily, it's extended to 60 days. Terms and conditions apply. 

Excluded from returns:

  • Clearance and discontinued items
  • Infant formula and food
  • Toilet training items
  • Underwear and swimwear
  • Items sold in unsealed packaging designed for close skin contact
  • Baby Bunting Gift Cards
  • Marketplace items (each seller has their own policy)

View our full Change of Mind Returns Policy here.