The Body Solid ProClub Line 310lb Stack Leg Press Machine is designed to reduce spinal compression while allowing full range of motion in a natural biomechanical movement. It includes a fully adjustable DuraFirm back pad and designed with two position press plate which will accommodate all size users for a complete leg and calf workout. Its constructed details include a 2"x4" high-tensile-strength steel mainframe, nylon-coated, self-lubricating, aircraft-quality steel cables. It features fiberglass-reinforced nylon pulleys with v-grooved channels, machine-drilled weight plates that employ oversized nylon bushings for super-smooth operation, and highly polished, chrome-plated steel guide and selector rods. It comes with a double powder-coated finish that protects against scratching, chipping, and peeling.