Pebeo Gedeo Non-Firing Clay is a versatile air-drying clay containing a synthetic binder. It’s very malleable & ready to use directly from the packet, & hardens in four to five days without cracking, no baking required. Very soft, doesnt crack when drying. Can be waterproof-coated to make watertight to make non-food grade containers. Any leftover clay can be stored almost indefinitely: simply wrap it in a wet towel & put it in a sealed plastic bag. Pebeo Gedeo Air Non-Firing Clay comes in two natural colours, red & white, each in a 1.5kg pack.