Marine drain plug Made of Stainless Steel, very tough and to Screw type drain plug with a o-ring washer for positive sealingRetention system prevents plug from lost when removedMounts in a 1inch/25mm diameter hole in hullThe plugs prevent all water from intruding into the kayak and will keep you dry out on the water Made of Stainless Steel, very tough and to Screw type drain plug with a o-ring washer for positive sealing Retention system prevents plug from lost when removed Mounts in a 1inch/25mm diameter hole in hull The plugs prevent all water from intruding into the kayak and will keep you dry out on the water Great accessories for boat transoms, fish , ice chests, yacht and more Colour:silver Gasket color: 2: Orange Material:Stainless steel Size: 42mm Package Contents: 1 x Marine drain plug 2 x screw Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.