High hardness aluminum alloy construction. Suitable for many kinds of bicycles. Size: Length - 10 cms, Width - 3 cms Made of high quality materials, light weight and durable Good replacement parts for MTB, road bike, etc. * Package included 2 pair of brake caliper and 1 pair lever * Metal base clamp and rubber pads, durability and wear resistance * Concave shape and anti-skid design, having better effect of drainage and sediment