Low-profile design allows your trailer to be used for multiple purposes without causing interference (hauling ATVs, furniture or whatever you may need to haul), HDPE plastic greatly reduces the friction between ski and trailer, making loading and unloading effortless, Eliminate damage to trailer decking caused by carbide wear rods, Slotted mounts are designed to allow LowPro Glides to expand without warping, Stainless steel Torx mounting hardware and driver included, Made in the U.S.A.