Two soft foam rubber corks, 1.5 inches in diameter by 1.5 inches long. Plug comes with an attached bungee cord leash and hook. Made for Riot Kayaks, such as the cargo deck of the Escape. Can be used as a replacement for Dry Ride XS Scupper Plugs common on some older Wilderness Systems sit-on-top kayaks such as the original Tarpon 160, Ripper, Tarpon 100 and the older version Ride 135. Can be used for any sit-on-top kayak with the right sized scupper holes.