Try out the NEW Slimy Puffy Cotton and experience the super lightness feels like a cloud. Stretch it, mold it feels like silk! Comes in great scents. , , Never dries out. Pretty rainbow-like colours. Slimy is a nontoxic, nonirritating polymeric play material. It comes with different properties which not only amuse children and adults but also help in the development of dexterity and creativity. The Swiss Formula logo means the Slimy is produced using a unique formula, that guarantees its quality and safety.