The NRS Rodeo Split Stern Flotation fits in the back of your boat to stop your boat from filling with water in the event of a swim. The less water in your boat the easier it will be to get to shore. Don't lose your boat! These bags come with a lifetime warranty. The the Rodeo size fits in large freestyle boats and free running boats. NRS Rodeo Split Stern Flotation: The Infinity series bags are now using a 10 gauge Urethane fabric that won't leak or delaminate! Dimensions inflated: 28in L x 13in W at top, 3in W at bottom. Lifetime warranty. Price includes one float bag To determine the correct size of float bag for your boat, measure the inside compartment and order a bag that is slightly larger in dimensions to fill the space in your boat completely.