The Harmony Short Float Stern bag is a single replacement bag for the stern of 8 ft -10 ft kayaks. These bags are designed to be used as a set to accommodate center walls and a second bag is required to achieve proper floatation. The listed dimensions for the Harmony Short Float Stern Bag are for when the bag is inflated. SPECIFICATIONS Length: 3 ft 1 in / 0.94 m Width: 12 in / 30.48 cm Weight: 12 oz / 340.19 g Material: Vinyl FEATURES Only one bag is included, two bags are needed to achieve proper floatation Tie-ins are isolated from the air holding cell so that a tear out will be limited to the anchor Twist valve on the inflation hose ensures a positive seal High capacity dump valve for easy deflation Listed dimensions are for when the bag is inflated