Features: 1Keep Freshness: This vaccum wine stopper slows down the oxidation process to keep the wine freshness up to one week. 2Durable Material: This vaccum wine stopper is made from food grade silicone and plastic material, which is safe, reusable and durable. 3Widely Used: This vaccum wine stopper is widely used in most cork or screw top bottles. Suitable for oil, beer, champagne to mineral water. 44 Pieces: You will receive 4 pieces of this vaccum wine stopper that could meet your different needs, suitable for different occasion. 5Ideal Gift: This vaccum wine stopper with unique design is an ideal and perfect gift for your friends and family. Item Type: Vacuum Wine Stopper Material: Silicone, Plastic Color: Black Quantity: 4 Pcs Product Size: Approx. 8.5 x 2.5 x 1.7cm / 3.35 x 0.98 x 0.67in ( Manual Measurement, Slight Error May Exist ) Stretching Part Length: Approx. 4.1cm / 1.61in ( Manual Measurement, Slight Error May Exist ) Weight: Approx. 101g / 3.56oz PackageList:4 xVacuum Wine Stopper