Holds 1 bicycle up to 20kg. Made for roof top, boot or hatchback attachment. Attaches to metal, glass or fiberglass surfaces. 12mm thick high-density polyethylene (HDPE) body for strength and durability. One heavy-duty fork mount for 9mm dropouts. Three 150mm SeaSucker vacuum cups on body (each 100kg pull-strength rated). Approx. 380mm x 330mm footprint. Approx. 2.7kg