1. Suitable for Sealing and Food Grade Silicone: The bathtub stopper, made of silicone material, can seal sinks or bathtubs well with reduced leakage. It is made of 100% food grade silicone to help ensure that children are safe from harmful metals or plastics (BPA safe). It should be noted that it is only suitable for flat smooth surfaces. 2. Easy to Use: Before filling the tub or sink with water, use the tub stopper to cover the drain hole and remove it after use. This easy use saves effort. Additionally, the suction cup design is convenient for storage when the tub stopper is not in use. 3. Long-lasting Sealing: The shower bath drain stopper can maintain a seal for the whole night without significant water leakage. 4. Universal Size: One size is designed to fit most, with a secure snug fit and good grip suitable for various uses (such as kitchens, bathrooms, laundry rooms, utility rooms, Jacuzzi tubs). 5. Are you tired of dealing with hard-to-pull plugs that get dirty? Are you still using the original metal stoppers or inexpensive plastic stoppers? You may consider replacing them with our WSZCML silicone bathtub stoppers, which are big, round, and flat, making them easier to work with different size holes: tubs, bathtubs, kitchen sinks, etc. Being silicone, they are less likely to slip around compared to inexpensive plastic stoppers. The super slim and flat drain stopper design helps it seal well with no leakage. These cover the drain and stop water flow easily, allowing you to use the water for your evening cleaning routine. They have good suction but are easy to remove. It is easy for adults to lift up (just slip a finger under the side) but adds some difficulty for children. Do you dislike unpleasant smells that may come from the drain? You can use our tub drain cover to cover the shower drain when not in use to help prevent unpleasant smells from emanating. Take it with you when traveling! It is useful for travel, especially to foreign countries where sink stoppers often do not work well, making clothes washing challenging.