These tactile pieces are perfect on a lit surface or tabletop. Toddlers and preshoolers use these to fill containers, as imaginative play items, and absolutely love them on Kodo's Light Lab Panel. The set of 36 colorful transparent pebbles in 3 sizes support children to match, arrange, count, and create. Try them in a sensory table with dry materials such as shredded paper or cellophane.