15 pieces · Tubes & Sets · 2 alternative builds
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Colors included
These builds use your tube colors as substitutes when the original colors are missing.
BIG Rainbow is designed for younger builders whose hands benefit from larger Plus-Plus pieces and simpler color stories.
The tube includes 15 oversized blocks in 7 colors (Red, Orange, Yellow, Apple, Turquoise, Purple, White), easy to click together and pull apart again.
Open-play format encourages exploration rather than one fixed model, which suits toddlers and preschoolers discovering how shapes connect.
The rainbow palette supports friendly animals, stacks, patterns, and first sculptures without small-piece frustration.
Everything packs into a sturdy reusable tube that is simple to toss in a diaper bag, daycare cubby, or grandma's toy shelf.
Suggested for ages 1+
Includes:
About Plus-Plus:
Jul 28, 2026
Monthly Plus-Plus Challenges have officially launched! Build your best fantasy-themed creation, vote for your favorites, and become one of the featured builders in the community.
Jul 9, 2026
PlusPlusInstructions.com now includes every official Plus-Plus color. Explore the full color overview, track your collection, see what builds you can make, and generate alternative versions with your own colors.
Jun 26, 2026
Plus-Plus 3D builds just got a huge upgrade. Increase your build limit from 100 to 200 blocks, use better step controls, fine-tune positioning, and edit blocks faster than ever in Creator Studio.
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