Hardened Dual Drive Gear Extruder Upgrade Kit for Extruder 3D Printer Gear Accessory Enhanced Durability: Crafted from hardened materials, the gears withstand extensive use, maintaining precision in filament feeding. Improved Printing Accuracy: Dual drive technology reduces slippage and provides a consistent feed rate, enhancing print quality. Easy Installation: Designed for seamless integration with your existing setup, making upgrades straightforward and hassle-free. Colour:black Material:Hardened Steel Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Hardened Dual Drive Gear 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.