The Big Boy 120in Arched Folding Single Runner Ramp is designed for loading street bikes road bikes and motorcycles. It features a 12 degree offset for extra clearance when used with lower suspension vehicles. The ideal solution for loading motorcycles into 4x4 pickup trucks 2WD truck beds trailers box trucks toy haulers and loading docks. It includes a heavy-duty cam buckle safety strap which hooks the ramp to a vehicle frame to prevent ramp kick-outs during loading and unloading. Tapered feet ensure a smooth transition from ground surface to loading ramps while serrated rungs provide maximum traction during use. Heavy duty aircraft grade aluminum construction. Made in the USA. U. S. Patent NO. D595920.