5.1 inch diameter fits most drains, can be wildly used for bathtub, bathroom sink, and kitchen drains. MR.SIGA silicone drain stopper seals perfectly with no heavy leakage. Built-in suction cup secures stopper in place during use. It also offers an easy grab when removing the drain stopper after use. Easy to use and care. Simply use the tub stopper to seal the drain when you need to fill tub or sink with water. Clean with cloth or wash with mild soap. Suction cup can be used to store stopper on any smooth and flat surfaces when not in use. MR.SIGAs mission: Make your housework easier, and make the world cleaner. If youre not happy about the product, youre covered by a full refund. Please do not hesitate to contact us with any questions you may have, we are here for support and advice! - 5.1 inch diameter fits most drains, can be wildly used for bathtub, bathroom sink, and kitchen drains. MR.SIGA silicone drain stopper seals perfectly with no heavy leakage. - Built-in suction cup secures stopper in place during use. It also offers an easy grab when removing the drain stopper after use. - Easy to use and care. Simply use the tub stopper to seal the drain when you need to fill tub or sink with water. Clean with cloth or wash with mild soap. - Suction cup can be used to store stopper on any smooth and flat surfaces when not in use.