Amazing, no-mess indoor kinetic play sand unlike beach or play sand. This sand has special properties that make it soft and stretchy. Build something big, something small, let it flow through your fingers. You’ll be fascinated as it oozes, moves, and melts. It never dries out and it is environmentally safe, non-toxic. Enjoy this fun, therapeutic, sand. It is made out of 99% sand and 2% Polymer.