One gallon glass jar for Kombucha brewing, our Kombucha glass jar also includes a rubber band and cotton cloth for covering while brewing, as well as a plastic screw on lid to store your finished brew;Save big money on brewing Kombucha by getting all the things you need right here, except the ingredients for brewing Kombucha;This Kombucha jar is of course food safe, and ready to brew your favorite version of Kombucha;The included cotton Kombucha jar cover cloth is a breathable cotton (with included rubber band) that is placed on top of the jar, allows for release of pressure, but keeps out brew ruining flies;Kombucha brewing can be a fun hobby, as well as a great way to way to save money, and consume a healthy yet enjoyable beverage that isnt boring