It's the lightweight, spongy modeling material that sticks to itself, but not your hands! Non-crumbling formula is easy to air-dry for saving your projects. Ideal for a wide range of hands-on learning projects and sculpting activities. Value PackIncludes 12 pouches, 8 oz. each. Clay/Pottery Type: Modeling; Color(s): White; Weight: 6 lbs.; Packing Type: Case.