This product simplifies the loading and unloading process by reducing the friction between your skis and the trailer decking. The low-profile design of these glides is great for enclosed trailer doors and tilt trailers. Those that use the same trailer to haul both off-road vehicles and snowmobiles will appreciate the low profile. The guides are 9 inches wide to accommodate a 14-inch wide ski stance variance. Comes with 8 five-foot pieces.