The idea for the Vacu Vin Wine Saver emanated directly from the taste of spoiled wine - something that its inventors wanted to prevent once a bottle had been opened. The device was the first of its kind within the international market and has revolutionised the wine preservation process. It is now used in over 35 million households and more than 80 countries throughout the world. The Wine Saver is a vacuum pump that extracts the air from an opened wine bottle and re-seals it using a rubber stopper. The airtight vacuum inhibits the oxidation process that is responsible for the deterioration of wine. The vacuum is created by placing a stopper into the neck of the opened bottle and pumping it until resistance is detectable. The pump incorporates a patented 'click' mechanism that indicates when a sufficient airtight environment has been established. The Vacu Vin Wine Saver is suitable for all but sparkling wines. It is highly durable and easy to clean via wiping with warm water and conventional detergents (if necessary). The Vacuum Stoppers are dishwasher safe. -Preserves your wine after opening -Vacuum indicator: clicks when vacuum is reached Vacuum Wine Stoppers are designed to be used in combination with our Wine Savers. The Wine Saver system is used to reseal an opened bottle of wine by extracting the oxygen from the bottle, creating a vacuum to preserve your wine for longer. The vacuum can easily be released, which means you can enjoy a glass of wine whenever you want. Our Stoppers can also be used to temporarily seal your wine bottles during parties or dinner parties by simply using the airtight stoppers without crating a vacuum. Wine Stopper Use in combination with Wine Savers Suitable for all Vacu Vin pumps, older and newer models Airtight sealing of wine bottles Vacuum slows down the oxidation process Reusable stopper Set Contains : - One White Pump with 6 Gray Stoppers and Wine bottle Foil Cutter