Our clay extruder is buit with angle iron and plate steel. The barrel is 3' in diameter and 10" long. This extruder can hold approximately 3 pounds of clay. It is designed with an easily removable end cap that makes changing the die a snap. Our extruder can be mounted on a wall or sturdy table.Your extruder comes with 4 die to get you started, you can see them in the picture below.