This item is well made of premium material for durable and practical use. It is used to protect your bike's rear derailleur from damages. It is suitable for most mountain bike, road bicycle, folding bike, and etc.Protect your bike's rear derailleurfrom damages.- Suitable for most mountain bike, road bicycle, folding bike, and etc.- Just lock under rear wheel quick release or under fixed screw. quantity of delivery:1 piece (Package contents: Only the above package contents, excluding other products.) size:120*60*40mm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color:black colors (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.) Products from 's store