Nixonie Metal Champagne Bottle Stopper - Winebottle Corks - Stainless Steel Preseverative Champagne Stopper, Set of 2, Silver Easy to clean up. The stopper is an ideal & must-have barware accessory. Preserve your champagne or sparkling wine's flavor and bouquet longer. Clean and reuse again and again for an easy solution to keeping your unfinished champagne sealed. Each champagne stopper is constructed of tough, rust-resistant stainless steel & food-grade silicone.