K1 Gear 2 Sets (4 Pieces) K1 Max Extruder Gear Kit Full Metal Wire Drive Extruder Gear for K1, K1Max, K1C, V3, V3 Plus Nickel plating prevents rust, making the gears last longer and more lubricated. Enhanced durability: the extruder's integrated filament drive wheel features all-steel construction, ensuring superior durability. Heat-treated with a hardness of 55 HRC, it can be used continuously without wear. Improved performance: this filament drive wheel features a mechanized integrated design, providing accurate and reliable filament feeding for your 3D printer. Color: Silver Material: Hardened Steel Package Contents: 1 set x 3D Printed Dual Gear Extrusion Kit Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.