Cap and Preserver for Cava, Champagne, Vacuum Cap and Cava Bottles PRESERVE: It allows you to keep the Cava or Champagne in optimal conditions for a longer time once the bottle has been opened. PREVENT OXIDATION OF CAVA: Slow down the oxidation process and preserve the properties of Cava or champagne for longer with the vacuum cap. EASY TO USE: Once the bottle is opened, insert the cap and pump for proper sealing. PRACTICAL: It is a useful, lightweight and compact product to carry anywhere. Includes a time marker.