1.Sourdough Starter Kit: This wide mouth sourdough starter container has absolutely everything you need to create & maintain your sourdough starters: Wide mouth jar for easy adding, stirring & cleaning, last fed on line, which relates directly to the graduated feeding date band, thermometer, unbleached sewn to size cloth cover & metal lid 2.Perfect Size: The large 35 oz capacity sourdough starter jar kit provides plenty of room for sourdough starter fermentation and prevents spills. Wide mouth design allows for feeding and discarding. Enjoy hassle- cleaning with direct access to every corner 3.: Feeding day/feeding height tracking tape with date and time allows for accurate feeding, by moving and marking the tracking tape feeding time. A stick-on thermometer detects the temperature in the fermenter and creates an ideal environment 4.Cloth Cover & Metal Lid: This sourdough bread baking supplies includes a cloth cover and a metal cover, providing flexibility for storage methods. If you want to store the sourdough starter in the refrigerator for a week or longer, it is recommended to use a tightly sealed aluminum lid to keep it fresh. Also, a breathable cloth with a strong elastic band is better for use during fermentation to maintain air circulation