100% Brand New And High QualityType: Extruder Idler ArmMaterial: Aluminum AlloySize: As shownColor: Black, Silver Feature:1. Made of metal material and has a longer service life than a plastic arm.2. Upgrade Bearing. The bearing with teeth, it can hold the filament tightly and easy to extrude filament, and never slip.Package Includes: 1 Pc Extruder Idler ArmNotice:1.1cm=10mm=0.39inch.2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering.3.Please understand that colors may exist chromatic aberration as the different placement of pictures.