General description There are 6 stoppers in a set, which are easy to clean and carry. These stoppers help preserve the taste of wine, keeping it fresh for up to 15 days. The upgraded vacuum stopper is equipped with a built-in vacuum pump, ensuring a leak-proof seal every time. Technical specifications Material: ABS and 100% food-grade silicone Quantity: 6 stoppers per pack Usage Simply insert the stopper into the bottle and let the air escape from the upper and lower pump rods until you feel resistance. The stopper can be easily removed by shaking it left and right. Suitable for wine, champagne, oil, beer, and mineral water. Other information Safe for use in the refrigerator. Does not contain offensive toxins and will not change the taste or absorb odors. Ideal as a gift for weddings, festivals, birthdays, anniversaries, and other gatherings.