Easy to Use: Simply place the stopper into the drain, no tools required for installation. Like a stopper - just push firmly and go! Watertight Seal: They can effectively keep water in the sink and easy to remove from the kitchen/bathroom sink or bathtub providing a firm watertight seal that prevents water from escaping. Multi-function: is suitable for bathroom sink, bathtub and kitchen sink, including shower drains and bathroom sink drains. Throw away and replace the damaged, cracked and old sink stopper. Usage: The rubber sink stopper is effective against preventing water leakage from sinks. The universal bathtub stopper is used for longer storage of water in kitchen and bathroom sinks.