A small suction cup helps to adsorb and prevent movement. This silicone drain plug features a suction cup that secures the plug to the tub floor with a tight water seal. The silicone bathtub drain plug works with most standard 5.1" diameter tubs and sinks and provides a 100Percent sealing performance. Easy to use and convenient to store when not in use. Safe and eco-friendly: The bathtub stopper is made of food-grade silicone, soft, non-toxic, eco-friendly and skin-friendly. It is easy to clean and can be sterilized in boiling water. This universal silicone drain plug fits all plug holes. The silicone drain is very smooth and soft to the touch. It is very flexible, even little fingers can safely remove it without getting hurt! One size fits all, the secure fit and good grip are perfect for a variety of uses (for kitchens, bathrooms , laundry rooms, utility rooms, hot tubs). They have good suction at all to keep the water from draining away. Product Descriptions Feature: A small suction cup helps to adsorb and prevent movement. This silicone drain plug features a suction cup that secures the plug to the tub floor with a tight water seal. The silicone bathtub drain plug works with most standard 5.1" diameter tubs and sinks and provides a 100Percent Sealing Performance. Safe Bathtub Plug: Made of durable silicone rubber, non-toxic, environmentally friendly. Work with a reliable watertight theory to close the bathtub drain tightly. This universal silicone drain plug fits all plug holes. The silicone drain is very smooth and soft to the touch. It is very flexible, even small fingers can safely remove it without getting hurt! One size fits all, the secure fit and good grip are perfect for a variety of uses (for kitchens, bathrooms, laundry rooms, utility rooms, hot tubs). They have good suction at all to keep the water from draining. Specifications: Color: Grey. Material: Durable silicone rubber. > Package: 1 piece bath plug.