Super Seal Plugs are multi ribbed with an easy-pull handle. The plugs create a high pressure seal to keep water from entering the scupper holes. They are simple to use or remove are are low profile with no tether or tall features to trip up on. The plugs can be modified to use a tether and still remain dry. Sold in pairs.**These scupper plugs DO NOT FIT the MANTA RAY 11,12 or 14 models.