Jars with lids, four 7" rubber bands, and four sheets of 12"x12" muslin cloth that is breathable but keeps out contaminants or bugs. This is the perfect kombucha starter kit or for anything you want to brew, ferment, or store.HEAT RESISTANT UP TO 350ºF - This sun tea jar is heat resistant up to 350ºF which means you can pour your boiling water right into it and begin brewing your Kombucha or any other hot liquid without having to wait for the water to cool down.AIRTIGHT & LEAKPROOF PLASTIC LID - This lid is high quality and will not break. The plastic lid comes with a removable seal to make it airtight and leakproof. It will also not corrode or rust like metal lids.TOXIN FREE - This airtight glass jar is certified food grade which means that it is safe for all types of food and liquid.One Gallon of Personalization - With the 1790 Glass Jar Storage Containers with Lids, the only limit to what they can be used for is your imagination! Brew with them, decorate with them, store treats for your favorite furry friends in them! Customize without limits!