Name:Sram 12S Eagle Pulley WheelFeature:Noise Reduction, Wear ResistanceCompatible: for Sram X01 XX1 Eagle X-SyncMaterial: nyloncolour: blackPackage Contents:1 Pair x Pulley WheelOnly 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.