ITEM NAME:2Pcs, Marine Boat -On Board Drain Plug, 24mm, Polished 316 Stainless Steel Description: Made of Stainless Steel 316 ,Strong corrosion resistance,durable. Screw type drain plug bung, durable, strong and easy to use Flange diameter is 2inch, Plug diameter is 1/2inch BSPT, maintain sealing under high vibration.Screw type drain plug bung, durable, strong and easy to use. The plugs prevent all water from intruding into the kayak and will keep you dry out on the water. Great accessories for boat transoms, ice chests, yacht and more.