The extrusion gear has undergone post-treatment quenching and nickel plating process, which is more wear-, prolongs service life, and improves printing quality. With this all-metal extruder, users can have more option for consumables when using 3D printers. This for LITE extruder is mainly suitable for CR10 / -10S / / V2 series models. The larger extrusion wheel increases the grip of consumables, reduces slippage, and the larger transmission ratio increases the torques to increase the thrust of the extruder. Other models can be designed by themselves according to the size and installation holes. Colour:Black Material:Hardened Steel Package Contents: 1 set * Extrusion Wheel Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.