Usage Tips:Features: Packaging includes 4Pieces Push-in Kayak Drain Plugs, easy to use and operate, sufficient quantity to meet daily repair and replacement need. Each Kayak Drain Plugs size 22x25mm/0.87x0.98inches. Fit kayak scupper holes within 1/2Inch. These kayak drain stoppers are easy to install. Just put some hand soap on plugs and it squeezed right in. Suitable for most kayaks, and so on. These drain stoppers scupper plugs are crafted from neoprene rubber, light in weight, good durability, long service life. Our scupper plugs effectively keep water out of kayak and keep you dry on the water. Help you enjoy paddling with friend and family. Specifications: Component: Rubber Color: Redness; Blue; Black Size: Approximately. 22x25x12mm/0.87x0.98x0.47in Weight: Approximately. 40g Package Includes: 4Pieces Kayak Drain Plug note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color