Check the listing for details. 3D Printer Part Extruder Gear Package Accurate for K1/K1C/Ender3 Series Smooth. Condition: New, Made in China. Listed at 11.43 USD. Features: For K1 Extrusion Gear Kit can be used in mechanical transmission system to provide stable gearing effect. Highly quality our gear kit offer excellent resistance to wear and corrosion for longlasting performances. Highly quality materials, wear and corrosion resistant; Precision machining process ensures highly precisions and smooth operations; easy to install and maintain. Widely used in K1/K1C/K1mac/Ender3v3/v3Plus printer Specifications: Component: Metal For K1 Extrusion Gear Kit For: K1/K1C/K1mac/for Ender3v3/v3Pl Size:as Pictures Package Includes: 1Set Extruder Gear kit note: Due to problem of lighting effect and there might be tolerances in product, please understand. Please allow 1cm errors due to measurement.