Rigid closed cell foam insert for Old Town Topwater/Sportsman 106/120 PDL kayaks. Allows PDL kayaks to be used in shallow water where the pedals would be raised or not installed. This tight fitting insert helps prevent water from entering the center hole in the kayak. An option that will enable your PDL kayak to be used in places where you'd normally need a traditional kayak. Can save money by avoiding the purchase and possibly licensing (depending on the state) a second kayak for shallow water use. Not to be used for white water kayaking. This insert floats but does not support the weight of someone standing on it. This comes from a smoke free, pet free home.