Classic Old Town Hatch Cover for the stern of some older kayak models. Exact fit information is unknown! Best use as a replacement part for classic Old Town kayaks, assumed to be models such as the Egret, Heron and Millennium, circa year 2000. This is often part of a double hatch cover system. A neoprene inner cover must be used with the hard cover to make a water tight seal on the Egret and Heron models. The Millennium takes a gasket. Cover is approximately 19 3/8 x 14 inches out side dimensions. New-Old Stock in good condition, but expect a cosmetic flaw from long term storage.