ECR4Kids Wood Tunnels and Arches Toy Set | Creative STEM Building Kit | 20 Pieces

For kids who think outside the box! These curved blocks are perfect for building tunnels, bridges, or the Loch Ness monster. Set of birch blocks comes with four different widths. For use both in the classroom or at home.

Four sizes of curved blocks for kids to build tunnels, arches and other imaginative structures Includes 8 small, 4 medium, 4 large, and 4 extra large arches All blocks are sturdily built with 100% rubberwood with a natural finish Little ones develop motor skills as they lift, stack and arrange arches GREENGUARD GOLD Certified for minimal chemical emissions into indoor air