The principle of the clay extruder is vertical force. Some mold heads are slightly smaller, oil clay or soft clay is harder. It is recommended to squeeze after softening. Soft clay is hard to squeeze at room temperature, and clay is soft due to material. Squeeze it will save effort. pottery spirit,reflected in the paranoia of every detail,the design of human language.outstanding details show the beauty,multi-functional rotary clay extruder for pottery and ceramic. Product information: 1)Color: Green. 2)Material: Aluminium alloy. 3)Size: Length: 6.5 inch / 16.5 cm, Width: 3.9 inch / 10 cm (at the widest part), Bottom Outer Diameter: 0.78 inch / 2cm, Bottom Inner Diameter: 0.55 inch / 1.4cm 4)Can be disassembled into three parts for easy to clean with soap and water. Instructions for use: 1)Crush the sludge into a cylinder that is slightly smaller than the barrel. 2Spin the opening cap and put the sludge into the barrel. 3)Put the required gun head into the headgear. 4)Put on the headgear and turn the lever clockwise. 5)You can make the desired effect by turning the clay extruder tool by hand. This polymer clay extruder can be useful for cake decorating,foudant extruder and more.The clay press is useful clay press machine for beginner. Usually we also can teach kids to cook some modeling pasta at home.