if you hit the right side of wrestling in riding・ there is the opportunity to damage the ears・ this case is very common・ especially in long-distance riders・ this accessory is best to become an essential piece.<br /><br />specifications:<br />material: aluminum alloy<br />color: silver<br />size: as showed・ we have almost all types. <br /><br />feature:<br />100%  and high quality.<br />for bikes where the derailleur is held in place by the wheel nuts.<br />all types we have.<br />include bolt and nut<br /><br />package includes:<br />1 x bike rear derailleur hanger<br /><br />note: <br />1. please check your bicycle transmission bracket model to find out which type fit・ or we can not help this.<br />2. for different monitors・ the color may vary slightly. besides・ please allow some errors of manual measurement・ thank you for your understanding!