With (2) Carbide Dollies and (1) Track Dolly, the Black Ice Snowmobile Dolly Set is ideal for storing away and gliding your sled around in the shed or garage. (4) swivel casters per dolly lets you easily move the snowmobile around without damaging the floor or skis. All (3) dollies feature a raised edge for stability, the (2) Carbide Runner Dollies include a strap and buckle to fasten the runners to the dolly for additional security, concave center features extruded rubber grip surface. Constructed of steel, the snowmobile dollies are coated with a black powder finish for longevity. The Snowmobile Dolly Set is designed to fit both single and double runner skis. Not only can the sled dollies be used for snowmobiles but are also great for moving large equipment, heavy boxes and much more! Compact in size, the Black Ice Snowmobile Dolly Set provides multi-purpose use beyond sleds. Assembles in minutes and includes a one year warranty.