This pale white self-hardening clay is formulated for handbuilding, wheelthrowing and sculpture techniques. Stonex is moist and ready to use; simply knead it to increase plasticity before modeling. The pieces dry hard and durable, but not waterproof. Can be painted.Details:White5 lb. (2.27 kg)Modeled objects are permanent without firingPremium qualityCan be painted, but not waterproof