The Jobe Transom Bumper is a necessity when it comes to the Infinity Series. Attach these bumpers to the first InfinityIsland or pool when you position one of these products directly behind your yacht platform.The transom bumper secures the island/pool, so it doesn't get stuck under your yacht platform. Always use 2 bumpers to be safe. Specifications: - Halkey Roberts Valve - Can only be inflated with a connection to the Halkey Roberts Valve - Pressure: up to 0,19 bar (2,7PSI) - Dimensions when inflated: Ø11,8" x 23,6' | Ø30 x 60cm - D-rings for mounting on infinity islands and pools