Champagne stopper #1 in Spain, France and Italy. Best value for money This bottle stopper fits perfectly with sparkling wine, champagne, lambrusco bottles, etc. Prevents the loss of C02 and perfectly preserves the gas in the drink after opening the bottle. Handle system with perfect attachment to the bottle. Up to 6 ATM resistance, self-adjusting sealing and European manufacturing. A professional stopper that really works to preserve sparkling wines. While vacuum pumps oxidize the taste of bubbles, this stopper keeps CO2 in the liquid. With gas to the last drop The clasp uses a simple but bright physical principle (Pascal Law). As the pressure inside the bottle increases, the inner stopper expands and creates an "airtight" seal. Place the bottle horizontally or vertically without losing bubbles. BPA and phthalate free. The key to maintaining maximum effervescence is to seal your bottle immediately and keep it cool at all times.