The Mainstays Universal Rubber Flat Suction Sink Stopper fits most basins drains sinks bathtubs and more. It is very easy to use. No installation or tools required. These sink stoppers lay flat over most drains and can be easily removed. Constructed from high quality flexible thermoplastic rubber. The Mainstays Universal Rubber Sink Stopper is also travel size and makes for a great addition to your vacation luggage. No more worrying about having a stopper when you are away from your home! As an added peace of mind the flat cover will not go into the drain.