Caliber Products Multi-Glide Wide 8in. - Single Set 13306Deep channel design suspends all types of carbide runners, reducing friction Reduced friction between ski and trailer makes loading and unloading quick and easy Multi Glides Wide are designed to accommodate all dual runner skis Eliminate damage to trailer decking caused by carbide ski wear rods Slotted mount system is designed to allow Multi Glides to expand without warping Multi Glides accommodate snowmobiles with up to 7in of ski stance variance