1、Material: High temperature silicone gasket for 3D printer, hot bed leveling column, high temperature resistance and durability. 2、Shock Absorption: Compared with plastic, hot bed silicone leveling helps reduce any vibration. 3、High Performance: Roman numeral plastic hand tightening nut, clear scale, convenient for leveling, using high quality environmentally friendly plastic, high hardness, wear resistance and corrosion resistance. Large outer diameter, easy leveling. Arc edge design, increase the experience feel. Hexagonal support, not easy to deviate, to ensure the center of the nut. 4、Motor Special Shock Absorbing Gasket: Reduce noise, reduce vibration, strong durability. Not easy to damage. 5、Easy to Assemble: The metal extruder kit includes all the necessary screws and parts, which can directly replace the old fragile plastic extruder. 4 x Roman Numeral Finger Screw Nut4 x Hot Bed Silicone Mat4 x Screw1 x Ptfe Tube2 x Motor Silicone Gasket4 x Leveling Spring2 x Insulation Rubber Sleeve2 x Blue Heat Sink1 x Black Heat Sink1 x Destructor1 x Cable2 x Extruder Aluminum Block1 x Accessory Bag Item Type: 3D Printer ExtruderMaterial: Plastic, Metal, PTFE, AluminumApplicable Model: Applicable for Ender 3 CR-10S