Master Plumber 1" White Rubber Sink Stopper. Suitable for 7/8" to 1" drains, this durable rubber stopper effectively seals your sink to prevent water from overflowing.
WARNING: This product can expose you to one or more chemicals, including Phthalates, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov