Plus-Plus building pieces unlock imaginative play without limits. This Pteranodon tube contains 70 interlocking pieces in maroon, orange, yellow, and lime—designed for both 2D and 3D construction. Kids develop fine motor skills, focus, and patience as they build dinosaurs, abstract designs, or whatever their creativity conjures. A natural STEM toy that rewards patient, hands-on exploration. Plus-Plus pieces are elegantly simple: each measures .75" x .5", designed to connect endlessly with zero frustration. The reusable travel tube makes this perfect for quiet time at home, in the car, or as a gift. Thoughtfully designed and made in Denmark using 100% renewable energy in a zero-plastic-waste factory. BPA-free and phthalate-free. Suggested for ages 5–12.