Material: Steel Color: Black Size: approx 10cm x 5cm x 4cm Net Weight: 65g approx Quantity: 1 Pc Features: 100 percent new and high quality! The shape conforms to maximum of the mountain bike, to supply high–quality defense for rear derailleur, stop the derailleur became struck distortion or displacement in riding to guarantee the safety of the driving Can even be used preserve rear derailleur when tripped, is awfully reliable Left and right wings slot, with assistance from frame can be extra fastness install at the frame Single constant gap can be easily put in Protector makes use of aluminum material and arch attitude suppress, make the protector isn't smooth to deformation beneath the stable impression force, nice protect the rear derailleur Universal size compatible for many MTB bikes, avenue bikes, folding bicycle Package Included: 1 x Cycling Derailleur Guard Protector