Tinksky Portable Stainless Steel Polymer Clay Gun Extruder Sculpey Sculpting Tool with 19 Interchangeable Discs (Silver) Color: silver. Material: durable stainless steel. Size: Total length: about 9.5cm; Width: about 5.5cm (at the widest part); Bottom outer diameter: about 2cm; Bottom inner diameter: about 1.5cm. Used for many craft projects such as polymer clay, ceramic clay, pastry, bread dough, sugar paste and so on. Come with 19 interchangeable discs for creating many different shapes. Can be disassembled into three parts for easy to clean with soap and water.