FINALLY, easy snowmobile trailer loading. Less oomph, more protection. Ribbed trailer guides and traction pieces provide easy snowmobile loading without trailer abuse. Low-profile, semi-flexible polyurethane construction. Set includes four 5' lengths. Each Guide is pre-drilled with recessed screw holes. Mounting screws included. Buy one set per sled for a standard 10' trailer, and 2 sets for a 2-place trailer. Does not include track grips. State Size. Order Today! 6" Measures 6"w. x 3/8" thick 8" Measures 8"w. x 3/8" thick. Low-profile Snowmobile Ski Glides