The Thule 9033 Tram Ski and Snowboard Carrier transforms your summer bike carrier into a winter ski and board carrier for your vehicle. Ultra soft rubber arms hold skis and boards securely without scratching surfaces while oversized push buttons allow for easy opening and included locks keep your skis safe. Holds up to 6 pairs skis or 4 snowboards on 2 in. class two receiver racks and carries up to 4 pairs skis or 2 snowboards on 1 1/4 in. receivers and Thule Spare Tire carrier. REQUIRES a Thule Hitch or Spare mount carrier for use, including the Spare Me (963XTR), Vertex (9029, 9030, 9031), Apex (9025, 9026, 9027), Parkway (956, 957, 958).