The item is a simple and practical clay gun extruder tool, which is made of durable aluminium alloy material for safe to use. Equipped with 20 interchangeable discs for creating many different shapes, the clay gun extruder tool is perfect for many craft projects such as polymer clay, ceramic clay, pastry, bread dough, sugar paste and so on. With easy to disassemble and clean, it is really a wonderful clay gun set for choice.