Suction - Keep debris or oily water out of the drain with this universal drain cover. Its large surface lays flat and is attached with powerful suction to seal the drain holes. Helps to fill the bathtub Blocks Odors and Odors - Use this mat as a stopper to prevent unpleasant odors from escaping your sink and causing blockages. You can also use it as a shower drain. Home Essentials - Multipurpose Essentially, it can be used as a tripod, coaster or placemat for hot dishes or glassware and cold cups or kettles. Food Grade Silicone - This mat is non-toxic, soft, flexible and durable. It is heat resistant and does not absorb odors. It's also stain-resistant and has a non-slip feature on the bottom of the pad, so it stays in place during use. Size: 20*20cm EASY TO CLEAN AND DISINFECT - Easy to clean with soap and water. Easily disinfect with a bleach solution of 1 part bleach to 10 parts water.