Prevent bubbles from escaping the to preserve its flavor. It protects the very well. One thing we all know is that it's important to open the and store it properly so that you can enjoy the rest next day. These heat shrink capsules preserves by stopping the oxidative process that causes it to go bad. Features -Color:As shown. -Material:PVC -Size:6.00X2.80X2.80cm/2.36X1.10X1.10in - Suitable for most different bottles, the Shrink Capsules are perfect as a practical small gift for a collector. - Adding these shrink capsules to your will give it an elegant and classic look that will give your a different decorative effect. - The shrink pack is very easy to use. You can use a thermal shrink machine to shrink this capsules. -These heat shrink capsules can be used when a of has been opened but not finished, to keep fresh. -Easy and convenient: These heat shrink capsules are easy to use, save you time and are very convenient. Package list: Red Heat Shrink Wraps