Pebeo Gedeo Non-Firing Clay is a versatile air-drying clay containing a synthetic binder. It’s very malleable and ready to use directly from the packet, and hardens in four to five days without cracking, no baking required. Very soft, doesn't 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 and put it in a sealed plastic bag. Pebeo Gedeo Air Non-Firing Clay comes in two natural colours, red and white, each in a 1.5kg pack.