Quick Overview The RMCO Side Box Supreme Single Lock Black Shell is an elegant and smart looking box, suitable for all bikes. It is made from strong PVC material, and comes equipped with the frame and all the fittings and clamps , which enables smooth and hassle-free fitment on to the bike. The box is spacious and offers sufficient capacity for the regular needs of the biker. The double frame in front offers double protecton against breakage in case of any collision. It comes in an attractive matt finish.