The Le Creuset Metal Crown Sparkling Wine Stopper, Model SW-101, is designed for proper preservation of opened Champagne bottles. It features a lever-pressing system that ensures an airtight seal to maintain the flavor and fizz of your sparkling wine. The stopper easily slides around the neck of the bottle and prevents leaks, allowing for simple storage on the bottle's side. Made from durable nickel, this stopper is both heavy and sturdy, providing a high-quality solution for champagne lovers.