Package Includes - 3 pack kayak drain plug push in Material - Made of neoprene rubber material, not easy to crack and fray, the scupper plugs are easy to install in your kayak. They are water resistant, don't worry about getting rotted when soaking in water. Product Size - Length is 1.25", Diameter is 1/2", Plug Top Diamete is 7/8", Fit kayak scupper hole ranging from 1/2". Didn’t have to make the hole bigger at all. Just put some hand soap on the plug and it squeezed right in Easy to Use - the scupper plugs can be easily installed in your kayak, helping prevent water from entering the kayak, and the scupper plug allows you to pull out and replace conveniently .
eBay