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. Includes four packages, 8 oz. each. Clay/Pottery Type: Modeling; Color(s): White; Age Recommendation: Ages 5 and up; Weight: 2 lbs.