Presenting the steel bearing offers smooth operation for your paddling. Being 58% lighter and 120% harder, the pulley ensures creamy chain rotation with notably less friction and noise. Oversized Pulley: 14 & 16-Tooth oversized design with wide and narrow tooth shapes. Offering precision in chain engagement, performance, and significantly reduced friction. Derailleur Compatibility: Fits GX AXS Eagle 12 with minimal drag. Longer and Further: Boasting durability, TRiPEAK steel bearing pulleys are designed to maintain performance. Off Road, Of Course: Waterproof, dustproof, and anti-deformation. Runs on sealed bearings, keeping contaminants out and maintaining your riding experience. Material: plastic + metal Color: black Package Contents: 2 x guide wheel with positive and negative teeth (14T + 16T) 4 x washer 1 x wrench Only the above package content is included; other products are not. Note: Light reflection and different displays may cause slight color differences. Measurement allows an error of +/- 1-3cm.