These six arch-shaped panels are made from sustainably cultivated European Beech wood. They're designed for use with our Rainbow Wooden Architect Arches (# 73412, sold separately). Provide a foundation for children to create their own structures and building methods. Introduce STEM concepts, construction, spatial reasoning skills and more. The surface of these panels features a natural Beech wood grain. The edges are rounded and the wood won't splinter. For ages 12+ months. Size of largest panel: 6"L x 3"W x 0.3"H.