Stimulates creativity and helps little fingers build fabulous things. Allows children to quickly and easily produce impressive models. No glue needed! Simply moisten the pieces with a little bit of water and they will stick to each other and to many different surfaces. PlayMais is made out of corn starch, water and food coloring. 100% biodegradable, natural, and safe. Pieces can be re-shaped, squeezed, cut and molded into practically any shape. PlayMais Basic Education, Large, set includes more than 700 PlayMais pieces, instruction booklet, sponge, and biodegradable modeling knife.