SIZE FOR YOU- Kayak drain plug kit press board size: Approx. 2.2*1.2 inches (5.6*3.1cm) , Outside diameter of scupper plug: Approx. 1 inch (2.6cm) , Length of scupper plug: Approx. 2.2 inch (5.7 cm).PRACTICAL PRODUCT- This Kayak Drain Plug Kit fits all kinds of canoeing, canoe, ship drain plug. Stops water infiltration and it is used to drain the water out of the inner hull of your boat.EASY TO USE- Just install this kayak drain plug kit to the kayak boat, there are rubber gasket on each plug protect hull from damage.PACKAGED- This kayak drain plug kit packaging included 4 coarse thread kayak drain plug kit with 8 stainless steel screws.SATISFACTION GUARANTEE- Tips: Please confirm the size is suitable for your kayak boat before buying. Any question, please contact us asap.