Enhanced Durability: The nanocoating on the extrusion head provides increased resistance to wear and tear, extending the lifespan of your 3D printer. Precision Engineering: Manufactured with precision, this gear kit improves the overall efficiency and accuracy of your 3D printing projects. Easy Installation: Designed for easy setup, this kit allows you to quickly upgrade your printer with minimal downtime. Due to different batches, there may be differences in product appearance and printed text, which not affect use Specification:1Set Colour:As Shown Material:Aluminum Alloy Package Contents: 1 x Extrusion Head 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.