1ACCURATE PARTS: The dual gear extruder use an all metal design, and the entire product is machined with CNC machine tools to ensure accuracy 2APPLICABLE MODEL: Double gear extruder is compatible with for CR 10, for CR 10S, for Ender 3, for Ender 3 v2, for CR6 SE series machine, very versatile 3STABLE AND NON SLIP: Geared extruder adopt linear consumables, possess stable transmission force, not easy to slip and offset along the extrusion wheel axes, which improve the printing accuracy of the printer 4WEAR RESISTANT AND STRONG: Extrusion gear after quenching and Ni plating process treatment, more wear resistant, erosion resistant, long lasting 5EXCELLENT PERFORMANCE: All gears are equipped with accurate bearings for high power transmission, extended service life and improved print quality 1 x Extruder 7 x Screws 1 x Spring 2 x Hex wrench 2 x Accessories