An innovative sensory play resource made from 100% eco-friendly materials and consciously manufactured. They are made of natural Fiber Particulate Composite (FPC), which is an agricultural waste product from rice stems and rice husks. Children will love to touch and feel these shells, make imprints into sand and dough or use them in role play and they can be used to teach early math concepts. Includes 2 of each in 6 different tactile finishes and 3 sizes.