Durable, washable and reusable. Offer you much convenience. Fizz will last until the bottle is empty. Great for use at home, office, camping, etc. Designed to keep soda and other carbonated beverages from going flat. Easy for operating, simply twist dispenser onto the top of a plastic 2-liter bottle, then invert the bottle to dispense drinks into your glass. Compact design, you can put it into your fridge. Pour soda right from your fridge.How to Use

• Press the rubber ring to the bottom
• Let your drink stand and screw the Fizz Saver to the bottleneck (Please do not shake the drink to prevent air bubble appear)
• Invert the bottle and the Fizz saver slowly 
• Dispense drink into your glass
• Note: this product work by air bubble, so it fit for sodas