Our Extreme Max Trailer Trax makes loading and unloading your sled quick and easy at a very economical price. We've designed our low-profile, strong plastic, grooved tracks to install simply and securely. Once installed they greatly reduce the friction between ski and trailer while also protecting your trailer decking from damage from your skis or studs. When you order one Extreme Max Trailer Trax kit you get a complete kit to protect one 8' x 10' trailer from one sled. Furthermore, you can order extensions or additional kits to fully cover any size enclosed or open snowmobile trailer.