Reduced friction between ski and trailer makes loading & unloading quick and easy. Low profile design allows your snowmobile to glide on and off trailer without causing interference while hauling furniture or anything you need to haul. Eliminates damage to trailer decking caused by carbide wear rods Has a 45° angled edge to reduce interference LowPro Glides Wide (8" wide) accommodate all dual runner skis LowPro Glides (6" wide) now accommodate all Polaris and Woody's dual runner wear bars LowPro Glides accommodate snowmobiles with up to 8.5" of ski stance variance LowPro Glides Wide accommodate snowmobiles with up to 12.5" of ski stance variance HDPE guaranteed not to crack, chip, break or wear out