From the product description, check product page for current description, price and availability:

• COMPLETE SET: This kit has almost everything you need to brew & ferment your own kombucha or any tea. 1 SCOBY and a 1 gallon glass jar which comes with a cotton cheese cloth, a lid, and an elastic band.
• EASY FILTER: The pure cotton cheesecloth keeps dirt, fruit flies, bugs and other particles from getting into your jar, while allowing air to come into the jar. A rubber band keeps it in place.
• HIGH QUALITY NATURAL SCOBY : Made in a clean and safe environment using only the finest all natural ingredients we provide you with a high quality culture that will make you a delicious brew.
• GLASS IS BEST: Using a glass bottle like this one is better for the flavor of the beverages you are brewing, and it doesn’t contain BPA or other toxins that other plastic containers may have.
• REUSEABLE STORAGE JAR: Aside from brewing and fermenting kombucha tea, you can reuse the glass jar to keep grains, legumes and other liquids in your fridge, pantry, or on your counter top.