Keeping a spare drain plug on hand is cheap insurance against losing the one you have.Offered in three sizes, these plugs consist of a rubber plug and brass lever which when in the depressed position expands the rubber to hold the plug securely in the hole. Commonly used to plug the drain hole in many production boats, other uses include bait tanks and coolers.Key FeaturesDrain plug with multiple applicationsBrass/rubber constructionThree sizes