Ensures easy, smooth loading and unloading of cycles and other cargo. Hardened aluminum one-piece tops are strong, lightweight and rust resistant. Fit snugly against loading surfacetongue holds ramp on tailgate. Tongue grippers add traction. Tongue is predrilled to allow use of slip-in steel hold-down pins (included) to maximize ramps stability and prevent accidental separation. Predrilled to speed up mounting to underside of planks. Planks not included. Planks must be drilled, in good condition and smaller in width than ramp tops. Capacity: Approximately 1,400 lbs. per pair (based on use with 2" x 12" fir planks). Complete instructions and mounting hardware included. Sold in pairs.