This ski and board carrier mounts on a wide variety of roof racks.This product will be shipped directly from SportRack and will leave their warehouse in 2 3 business days. Eligible for UPS ground shipping only. . Adjusts up to 56 in. in width. Attaches easily to vehicle rack system. Includes raiser blocks for additional binding clearance. Locks included for additional security. Fits SportRack Roof Rack Systems, square, round and most factory racks. Holds up to 4 snowboards or 8 pairs of skis. No drilling required.