These wine stoppers are designed to keep your wine fresh for weeks. The cap provides an airtight seal that is leak proof so you can throw away that cork! Made of premium quality silicone material that is durable and will last a lifetime. The stopper is suitable for most size wine bottles, beer bottles & many other beverages or liquids like vinegar. Add a custom logo to make a great impression for special events like weddings, corporate events, birthdays or for restaurants and household bars.