It is made of eco-friendly rubber seal and zinc alloy, anti-rust, safe and durable. Decorates and seals your wine bottles, preserves the wine for a few days. It makes the perfect gift for the golfer in your life. Golf ball style design makes you or your guests get the wine easily. Great choice to use for golf club party, wedding, birthday, kitchen or other gathering celebrations. Make a good advertisement for your company! Custom logo could be imprinted.