Washer Neoprene (Rubber) 1/4 x 1 inch -suit 1/4 inch Diameter screw 9820133 pack of 5

Stainless Steel-Neoprene Washer. Stainless steel/neoprene combination washer. Inside Diameter: 0.25 in / 0.63 cm. Outside Diameter 1 inch (2.5cm)

This is a slightly domed Stainless steel washer with neoprene (rubber) on one side. Used inside the hull or under the deck of a kayak the rubber seals water out, keeping the inside of the kayak dry while the stainless steel spreads the load and prevents damage and pull through