Beverage inverted dispenser, also known as a Fizz Saver or Coke Drinking Device. It is designed to keep carbonated beverages from going flat.
How it works: You screw the dispenser onto the top of a plastic bottle (like a 2-liter soda bottle), then flip the bottle upside down to dispense the drink.
Features: It is washable, reusable, and can be used for various carbonated beverages.
It is suitable for use with soda, cold drinks, water, and other bottled beverages.