Want to keep water out of your sit-on-top kayak No problem with these scupper plugs.These uniquely designed scupper plugs fit snuggly into place in any kayak scupper hole. Made with glow-in-the-dark, high visibility silicone, theyre easy to find too. Sold in a pack of four.Features:Universally fits all types kayak scupper holesGlows in the dark for easy visibilityComes in a pack of fourSpecifications:Materials: Glow-in-the-dark siliconeDimensions: 2 1/2”H x 1 ¾”dia.Weight: 1.2oz. eachColor: Green