Sculpey Non-Drying Modeling Clay will Not Air Dry - Can be used over & over again! Modeling Clay is clean, safe and perfect for kids of all ages. It cleans up quickly by working on a plastic sheet and can easily be stored in a plastic bag. This fun, non-drying clay can be used to make all sorts of shapes and 3-D figures, creatures and projects. Do not put this clay in oven, microwave or kiln. Clay comes in 5 colors; red, yellow, green, blue and white. 1.1 lb