Welcome to AUTUT & Enjoy your shopping AUTUT is committed to providing you with good quality auto parts Contact the AUTUT Team when you encounter any problem, we're willing to help you whole-heartedly AUTUT Universal Derailleur Hanger for Bicycle This item is made of high quality aluminium alloy, durable and longer use Can Well protect your bike from being damaged in case of falling down The upper end of the tail hook is connected with the frame, and the lower end is connected with the rear dial of the transmission Fits to most types of bikes​, can be replaced, reduce the maintenance cost of frame Product SpecificationMaterial: MetalColor: Silver ToneDimension: 65 x 31mm / 256" x 122"(L*W)Shell Color: Silver ToneThread Dia: M9 Hole Dia: 10mm / 039"