XIANQI [Function]: These kayak drain plug can be used to drain the water out of the inner hull of the kayak, helpful to stay dry while you are paddling [Good Sealing Performance]: Features an o-ring for positive sealing, fine threads maintain sealing under high vibration condition [Perfect Design]: Rubber gasket on each plug protect hull from damage; Retention system keeps plug from getting lost when removed [Wide Application]: Scupper plugs are for kayak, boat, canoeing, canoe, ship, Also ideal for boat transoms, fish wells, ice chests and more Description: Material: PP Color: Black Press board size: Approx 5.6x3.1x1.4cm / 2.2x1.2x0.6 inch Outside diameter of scupper plug: Approx 2.6cm / 1 inch Length of scupper plug: Approx 5.7 cm / 2.2 inch Function: Stops water infiltration and is used to drain the water out of the inner hull of your boat Package Included: 2 x Drain plug 4 x Screws