HIC Kitchen's Silicone Drain Stoppers seal drains to hold water in sinks and tubs. They work for all size drains with nonpourous surfaces without tile and grout. Easily draw water to wash dishes, soak laundry, bathtime, utility sink tasks, and more. They work for all sink drains, including the kitchen sink, bathroom, laundry, workshop utility sinks, and garbage disposals. They're easy to use. Simply center the stopper over the drain, and press the center down to create suction. To release suction and drain water, just lift the outer edges. Dishwasher safe for easy cleanup. Brought to you by HIC, a third-generation family owned and operated company in the USA since 1957.