Selected Premium Material : The wine stoppers made from high quality and durable ABS + Zinc alloy. Safe to human body, non- toxic, rust and corrosion resistant. It can be used repeatedly and is easy to clean. No Spills or Leaks : The combination lock seal wine saver fits most wine bottles, olive oil bottles and any type with the diameter of the bottle mouth between 1in to 1.1in. The high-quality ABS parts closely fit the bottle neck, completely preventing the loss of odor and prolonging the wine freshness, ensure that the opened red wine is not easy to oxidize in a short period of time. Newly Design to Keep Safe : Our wine bottle stoppers come with a three-digit combination lock, perfect for keeping children, teens or roommates from drinking. It also ensures that the contents (like high-grade wine, essential oil, vegetable oil, etc.) of the bottle are safe and secure, absolutely preventing from being stolen or exchanged. Wide Application : As a practical wine stopper, it would be a perfect solution for your home, bar, hotels, supermarkets, vineyards or restaurant. Fit most wine and champagne bottles. Not only that, it can also be used on premium bottle in different materials for protecting olive oil, essential oil, body oil, etc. Package Contents: 1 x Wine Bottle Password Lock, 1 x User Manual in Chinese