600 pc Open Play Mix - Neon: kids building with neon pieces at a white table

Open Play

A colorful mix of pieces designed for endless creativity and free building.

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Smiling child building a blue Plus-Plus dolphin next to a tube

Guided Play

Follow the included instructions to build one design, then create your own.

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BIG - 400 pc in Tub: girl building two BIG robot figures at a table

Most families own both!

Guided play builds the confidence. Open play keeps them building. Every piece fits every set, so the two mix together forever.

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What our customers say

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Common Questions

Do pieces from different sizes and sets fit together?

All regular Plus-Plus pieces are compatible, so you can mix and match colors, themes, and sets to create even bigger builds. BIG pieces are a different size and are not compatible with regular Plus-Plus pieces.

Can I build more than one thing with a Guided Play tube?

Absolutely! The included instructions teach you how to build the featured design, but once it's complete, you can take it apart and use the same pieces to create your own original builds.

What's the difference between BIG and regular pieces?

BIG pieces are designed for little hands ages 1-5, making them easier to grip, stack, and build with. Regular Plus-Plus pieces are smaller and recommended for ages 5+, allowing for more detailed and intricate creations.

Do Open Play tubes include instructions?

Open Play tubes are designed to let your imagination take the lead and only come with a general idea guide. If you're looking for inspiration, you can find hundreds of free build ideas in the Plus-Plus App.

Plus-Plus app on a phone with a green critter build and pieces

Build More, Imagine More

Unlock even more ways to create with the free Plus-Plus app. Browse build ideas, follow easy instructions, and discover new projects whenever inspiration strikes.

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