This premium quality, self-hardening clay is moist, odorless, and ready to use. It is ultra fine grade for excellent detail, superior strength, and durability. Activa is carvable, sandable, drillable, accepts all finishes, and can be fired in a kiln. Use this versatile clay for hand building, wheel throwing, and sculpting. It air cures to a superior strength, will not crumble, and features a low amount of shrinkage.