Iropla Black, set of 9 bags, new and unopened. 2 pieces per bag x 9 sets For handmade accessories and molding materials. This is a clay that softens in hot water. You can warm it up and create things repeatedly. It's a mysterious clay that softens in hot water and hardens when cooled in water. If you don't put it in hot water, it can retain its shape. SEED Oyumaru