Vestil Portable Aluminum Yard Ramps have a unique design that allows one person to position the ramp, adjust its service height, and load or unload trailers from ground level. Available with steel or rust resistant aluminum grating. Standard features: Hand pump hydraulic lift, safety pressure relief valve, 18" x 5" mold-on-rubber tires, 4" high curbs, service range of 45" to 62", anchor chains, and fork positioning loop.