Bicycle tail hook Derailleur Hanger after wear can seriously affect the shifting performance of the bike. Our Hanger is made of high quality aluminum alloy material,Offering higher strength ,by replacing this Hanger, you can restore smooth and precise gear shifts and improve your bike's overall performance.Material: Aluminum alloy + plasticSize: 38.4x65.3MMSpecifications: M12-1.5Color: Black Derailleur Hanger after wear can seriously affect the shifting performance of the bike. Our Hanger is made of high quality aluminum alloy material,Offering higher strength ,by replacing this Hanger, you can restore smooth and precise gear shifts and improve your bike's overall performance. Material: Aluminum alloy + plastic Size: 38.4x65.3MM Specifications: M12-1.5 Color: Black Package Contents: 1 x Rear Derailleur Hanger Only 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.