Acrylic Rainbow Unit Blocks - Foundation Set YGroup_Interlox with soft gray UV-resistant polyester

with soft gray UV-resistant polyester covers that are removable

over-molded Poly+ end-caps and filled with contents ranging from static-sensitive foam

Encourage spatial and social emotional play with toddler STEM toy Grippies® Stackers

arched pieces and double-sided inspiration cards complete with ideas for play

blank wood cookies feature write-on/wipe-off surface perfect for notes

Acrylic Rainbow Unit Blocks - Foundation Set YGroup_Interlox with soft gray UV-resistant polyesterEncourage children to explore structure, color and light while making realistic windows, glowing towers, and colorful architectural builds. Made to align with the same mathematical dimensions as traditional unit blocks, this set of sturdy blocks is crafted from solid, transparent acrylic. Set includes 16 blocks in 10 vibrant colors and 5 unit block aligned shapes to create a completely new play experience.