Keep Fresh: This wine stopper keeps the flavor of the wine to the fullest, the wine can be stored for up to 15 days. Our upgraded vacuum wine stoppers come with a built-in vacuum pump. Just need to insert the stopper into the bottle, expel air by pumping the rod up and down until it's tight. Widely Use: The wine stoppers are suitable for most wine bottles. Use them to preserve the taste of everything from oil, beer, champagne to mineral water. Easy to Carry: This wine stopper is very small and easy to be carried. You can take it with you on trips, picnics or any other activities outside. Safety: The wine stoppers are made of high quality ABS & Food Grade Silicone. It will never break your wine, change the taste and absorb odors. Perfect Gift for Wine Lover: This wine stopper is designed for personal use or as a perfect gift for a wedding, holiday, anniversary, birthday, or for any wine lovers.