Wine Saver ConcertoThe Original Vacu Vin Wine Saver has been a household essential since 1986, designed to keep your opened wine fresh for up to 10 days by preventing oxidation. Using the Wine Saver Concerto, simply insert the universal Vacuum Bottle Stopper into your favorite bottle and pump until you hear the patented Click, indicating that youve achieved the optimal vacuum level and created an airtight seal. This allows for upright storage in the fridge, on the