The container gasket seal is designed to provide a reliable, airtight seal for jars used in and fermenting. These silicone gaskets are easy to clean and reusable, making them a practical choice for any fermentation project. Simply place the gasket on the jar lid, secure it, and that your homemade brews stay fresh and flavorful. Features -Color:Black -Material:Rubber -Size:1.70X1.70X0.60cm/0.67X0.67X0.24in -Quick installation: easily install the fermentation jar lid gasket on your lids to create a tight seal that protects food from oxygen exposure -Prolonged fermentation process: maintain a longer fermentation period with this product, which works seamlessly with an to enhance enzyme activity -Strong airtight seal: the rubber gasket provides a reliable seal with the , effectively preventing oxygen from entering and spoiling your ferment -Wide range compatibility: suitable for various , lids, and straws, this gasket is a versatile tool for all your fermentation needs - jar conversion: easily convert jars into fermentation containers using these gaskets, ideal for brewing , , and more Package list: 50pcs x gasket