4 Size Aluminium Alloy Rear Gear Mech Derailleur Hanger Hook Drop Out

Made of high quality aluminium alloy, durable and longer use; With screw, easy to install and remove; Good texture, smooth surface, practical; Well protecting your bike from being damaged in case of falling down; Fits to most types of bikes, can be replaced, reduce the maintenance cost of frame

What's in the box
1 x Derailleurs