Keeps Wine Fresh：Remove air from your opened wine bottle to keep wine tasting new for up to 7-10 days, Suitable for all 750ml Red and White Wines and Champagne
Easy to Use: First：Place the bottle stopper on top of an opened bottle, pump the air out until you fell a strong air resistance, and until the number inside the date marker line up with “H” meaning high pressure, lastly hold the stopper still and turn the bottle to mark the number of the exact date you opened your bottle.
Accuracy：Wine stopper includes a date marker so you can make sure the last glass of the bottle tastes as good as the first pour. If the number of the date Drag drops to “L” level. Re-press the preserver to pump the air out.
Ultra Compact：Amazing wine bottle stopper is pretty small in size, easy to carry and to store, Dimension: Diameter 1.7 x 2.3inches.
Usability：It's good for traveling and make a perfect gift. Suitable for different events, wine tastings, parties, bars, restaurants, home and so on.100% SATISFACTION GUARANTEE: Buy with confidence. One year hassle-free replacement or money back.