Description: Enhance your 3D printing experience with our Upgraded Hardened Steel Extruder Gear Assembly, specifically designed for the A1 and A1 Mini 3D printers. This top-quality gear assembly is crafted from hardened steel to maximum durability and performance. Compatible with A1 and A1 Mini models. Constructed from high-grade hardened steel for long-lasting use. Nanocoated with CNC POM for enhanced performance and reduced wear. Easy to install, providing a seamless upgrade to your printer's capabilities. Specifications: Due to different batches, there may be differences in product appearance and printed text, which not affect use Color: Black+Grey Material: Hardened steel Package Contents: 1*Extruder Gear Assembly 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.