Made with durable cotton and stitched with elastic, we carefully designed these lids to stay in place on the jar, but easily slip on and off when you need them to. Description: We created these fitted covers for the brewer whos ready to upgrade from the rubber band and cotton square setup and invest in something that will last for years, not to mention look completely adorable. With eight colors and patterns to choose from, your brew setup has never looked better! The cotton fabric allows air to flow freely to your brew, while the elastic seals tightly around the lip of your jar to keep fruit flies and dust out. Trust us, once you get one, you'll have a hard time going back toa cloth and rubber band! Information: Sized to fit a standard one gallon glass brew jar with a mouth 110mm in diameter. 100% cotton. Made in USA.