The finest utility boat fender on the market. Hull Gard fender 5.5" x 20" features a unique oval design which prevents the fender from rolling out of position. The Hull Gard boat fender combines unsurpassed softness and superior strength to provide boaters with the maximum protection available from a utility boat fender. All six sizes feature inflation valves to adjust the level of firmness to satisfy all applications. Recommended inflation is 2 psi. * The most accurate way to select the right fender for your boat is to survey your docking area to find out what fender is in use for the same size and weight of boat, in terms of fender dimensions and quantities, and use that as a guideline. Guaranteed for the Life of Your Boat Against Splitting or Bursting!