1、COMPATIBLE MODELS: 3D extruded backplate parts are compatible with for Creality for Ender 3, for Ender 3s, for Ender 3 Pro CR 10 CR 10S S4 S5 series 3D printers. 2、SMOOTHLY MOVEMENT: 3D extruder back support plate with pulley extruding backplate for smoother movement and better control during the printing process 3、EASY INSTALLATION: 3D printer extruder backplate is easy to install by adjusting the hexagonal eccentric post to adjust the sliding smoothness. 4、STABILITY: 3D extruder back support plate provides extra support and stability during the printing process, minimizing vibration. 5、ALUMINUM ALLOY: 3D extruder back support plate is made of aluminum alloy, not easy to damage and rust, durable and long life. 1 x 3D Extruder Back Support Plate3 x Wheel2 x Separation Post1 x Eccentric Isolation Post3 x Screw3 x Nut1 x Spacer Item Type: 3D Extruder Back Support PlateMaterial: Aluminum AlloyApplication: For Creality for Ender 3, for Ender 3s, for Ender 3 Pro CR 10 CR 10S S4 S5 Series 3D Printers