DescriptionThis 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.Features- Color: Black. - Material: Metal. - Size: 10 x 3.5 x 3.8 cm. - and high quality. - Protect your bike's rear derailleur from damages. - Suitable for most mountain bike, road bicycle, folding bike, and etc. - Fast and accurate to remove and install. - Just lock under rear wheel quick release or under fixed screw.