A small suction cup helps it absorb and prevent it from moving. This silicone drain plug has a suction cup that can be fixed to the bathtub floor by a tight water seal. Silicone bathtub drain plugs are suitable for most standard bathtubs and sinks, with a diameter of 13 cm/5.11 inches and a 100% sealing performance. Easy to use and convenient to store when not in use. Safety and environmental protection: The bathtub stopper is made of food-grade silica gel, which is soft, non-toxic, environmentally friendly and skin-friendly. It is easy to clean and can be disinfected in boiling water. This universal silicone drain plug fits all plug holes. The silicone drain hose is very smooth and soft to the touch. It is very flexible, and even small fingers can be safely taken out without being hurt! One size fits everyone, safe fit and good grip are very suitable for various uses (kitchen, bathroom, laundry, utility room, jacuzzi). They have good suction power to prevent water loss. Product The flexible and soft silicone material has good sealing and drainage. This bathtub drain plug can be widely used in kitchens, bathrooms and laundry rooms. Water blocking washing When the bathtub is not in use, prevent bad odor from the drain Reinforced design is close to the bathtub drain pipe. Absorbing and fixing water, retaining water Made of non-floating material. Universal size helps to adapt to most different drain pipes. Diameter: 5.12" & Inner circle diameter: 2.16" Silicone flat plugs can be easily used in various fields Allows the bathtub plug to more easily mold itself into an uneven or contoured surface Suction/pressure makes a good seal. This is very useful for old plumbing bathtubs where you can't find a suitable replacement plug. For this product, one size should fit everyone. Press down the suture to seal with water pressure and prevent movement. Small water-absorbing design, easy to store and use, easy to hang on the wall when not in use Bathroom sink bathtub drain kitchen sink drain