SizeThe size of the bottle stopper is about 4.5*5 cm, which is suitable for soda bottles with the same caliber as Coca-Cola, such as Sprite bottles and Fanta bottles. MaterialThe bottle stopper is made of food-grade ABS and silicone. The silicone ring firmly prevents any leakage. Please clean and disinfect with vinegar and water for the first use. Do not sterilize at high temperature and heat it in a microwave oven. AdvantageWith a time scale display design, you can easily record the storage time. The storage time is up to 7 days, so that your soda keeps the taste just opened. Easy to usePressing and pumping, usually 8 to 20 pumps are enough to prevent the loss of carbon dioxide, thereby maintaining the taste. ApplicationIt is suitable for all kinds of soda drinks, so that you can drink fresh soda at any time, don't waste your soda. Size: 4.5*5cm Weight: 18g/pc Color: red Material: ABS, silicone Package includes: 2pcs * drink fresh cover