Features 1、[Compatible Models] This hardened steel extruder gear kit is compatible with for Bambu Lab A1, A1 MINI models, consists of transmitting gear and driving gear. 2、[Hardened Steel Material] The extruder gear is made of hardened steel, ensuring the longevity and durability for continuous and stable printing performance. 3、[DLC Coating] The gear is coated with DLC nano coating, which is hard wearing and has rusty proof and lubricating effects, improving printing efficiency. 4、[Upgraded Metal Handle] The handle is made of aluminum alloy, allowing for longer work time and easy gear replacement, increasing durability and lifespan. 5、[Enhanced Printing Capability] Hardened steel gear enables the extruder to print engineering consumables such as carbon fiber nylon, glass fiber, nylon, etc. Specification Item Type: Extruder Gear Material: Coated Hardened Steel Suitable: for Bambu lab A1, A1 Mini Package List 2 x Gear Component