XXL Building Blocks for Giant Fun

Soft, lightweight, and extra large — perfect for little hands. Kids build, move, and create their own world of play.


A gift that’s truly used. Every single day.

Cartoon bear with a speech bubble stating 'RIWI has already made over 85,000 families happy.' RIWI buildit

MORE MOVEMENT. MORE IMAGINATION. MORE RIWI.

Play that inspires — with space for your own ideas.

Colorful RIWI buildit toy structure with a bear figure on top, surrounded by flames.
  • ASTM International logo in blue on a white background RIWI buildit

    ✅ Safe for Kids

    All RIWI® toys are thoroughly tested in accredited labs and meet the latest US safety standards for children ages 3 and up.
    You can count on RIWI for a safe, worry-free play experience - trusted by parents, educators, and therapists alike.

  • RIWI buildit Illustration of a head with a light bulb and pencils, symbolizing creativity and ideas.

    🧠 Designed for Development

    RIWI® blocks are more than just fun – they’re educational tools too!
    They help kids build gross and fine motor skills, boost spatial awareness, and spark imaginative, creative play– all while having a blast.

  • Illustration of a washing machine with a blue door on a beige background RIWI buildit

    💪 Made to Last

    Our giant foam blocks have been bringing joy to kids for over 5 years – at home, in schools, and in therapy centers.
    They're washable, durable, and built to handle daily play*, even in busy classrooms and kindergartens. (*with velour covers)

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Building blocks kids love

All reviews

Our three children are always coming up with new ideas and love to just throw themselves into their work at the end to destroy everything. Even our youngest (1.5 years) can build her first structures because the blocks are so light.

— Benjamin

Great building blocks! What I particularly love: they are washable. If you lay them out flat to dry, they regain their shape perfectly. We have the 48-piece set and build huge caves where several children can fit inside.

— Family H.

We could throw out every other toy we own and my kids would still be happy because all they want to do is play with their RIWIs! It promotes imagination enormously—everything from caves to entire castles is possible.

— Lauren M.

By far the best investment for indoor play. These blocks are functional, well-made, and allow kids to tumble and climb safely without any hard edges. Finally, a solution that keeps them active and safe at the same time!

— Mary H.

Radiant children's eyes and huge building fun! The material is soft, light, and grippy—perfect for stacking. A highlight is letting a tower fall over together and landing softly in a mountain of blocks. Odorless and high quality!

— Philipp

Just purchased my second set. There are many companies out there—but buy the original. The quality, versatility, and the fact that it still looks great in our living room makes it worth every penny. Absolute recommendation!

— Tamara H.

Our three children are always coming up with new ideas and love to just throw themselves into their work at the end to destroy everything. Even our youngest (1.5 years) can build her first structures because the blocks are so light.

— Benjamin

Great building blocks! What I particularly love: they are washable. If you lay them out flat to dry, they regain their shape perfectly. We have the 48-piece set and build huge caves where several children can fit inside.

— Family H.

We could throw out every other toy we own and my kids would still be happy because all they want to do is play with their RIWIs! It promotes imagination enormously—everything from caves to entire castles is possible.

— Lauren M.

RIWI in action

By far the best investment for indoor play. These blocks are functional, well-made, and allow kids to tumble and climb safely without any hard edges. Finally, a solution that keeps them active and safe at the same time!

— Mary H.

Radiant children's eyes and huge building fun! The material is soft, light, and grippy—perfect for stacking. A highlight is letting a tower fall over together and landing softly in a mountain of blocks. Odorless and high quality!

— Philipp

Just purchased my second set. There are many companies out there—but buy the original. The quality, versatility, and the fact that it still looks great in our living room makes it worth every penny. Absolute recommendation!

— Tamara H.

All reviews