Keep Fresh: The vacuum pump can remove air from the wine bottle, effectively maintain the freshness of the wine and preserve the aroma of the wine for up to 10 days. : Insert the wine stopper into the bottle, then lift the handle up and down to remove the air. When encountering strong air resistance, it indicates that a vacuum environment is formed inside. Wide Application: Suitable for all red and white wine bottles. The wine saver pump is made of high quality stainless steel, comes with 4 reusable bottle corks. Perfect Gift for Lovers: The wine vacuum pump set includes 4 stoppers, which can be a perfect gift for wine lovers, wedding, birthday party. This wine stopper is not only suitable for daily home use, but also suitable for restaurants, hotels and bars. Warranty: sealants for wine bottles provide 12 Months limited Warranty and Quality Guarantee, so you don't have to worry about model mismatch.