1. Weight: 70g 2. Dimensions: 15x9x5 cm, main body 3.4x7.1 cm 3. Material: nylon, alloy, rubber 4. Specifications: 4 air nozzles, round joints are suitable for inflatable beds, inflatable pools, square joints are suitable for SUP paddle boards, etc., screw joints are suitable for assault boats, canoes, etc., pointed joints are suitable for swimming rings, floating rows etc. (used with car air pumps, conventional bicycle air pumps) 5. Applicable occasions: home, travel, dormitory 6. Features: no special air pump can be used to allow ordinary inflatable cylinder to be directly connected to the paddle board, etc., multiple specifications and multiple uses, durable
