VABNEER Cycling Bicycle Bike Frame Chain Protective Guard Pad Bicycle Accessories (Black,1 Pair) Excellent Quality: -Our product is a synthetic rubber material,it is very sturdy and extremely resistant to weathering and embrittlement. Could protects the paint and the frame material of your bicycle effectively and in the long term from damage. Material:- Diving Fabric, Neoprene. Size: - 20 x 11 cm. Advantage:- Reduce the turbulence caused by contacts with the body.Guard your chain from being damaged. After-Sales Service:If you have any problem, please feel free to contact us, We take full ownership and responsibility for the quality of our products and will do our very best to solve your problem quickly and efficiently.