The Bar Amigos Champagne Pressure Stopper comes in very handy when you don't manage a whole bottle of fizz in one sitting. Easy to use - simply use the metal wings to secure in place and push the operating button in a repetitive action until it feels stiff to the touch. This ingenious device can lock in the taste and fizz for well over seven days - product testing showed that sparkling wine could be saved for over two weeks! It Doesn't allow gas to escape like traditional bungs which result in liquid going flat. Compact design for easy storage. Date reminder dial feature. Three-year warranty with this product. Currently available in a trio pack - especially handy if your business sells sparkling wine or champagne by the glass.