Description: Sourdough Starter Kits: Glass jar for fermenting yeast with a cloth lid and a metal lid, 5.91''x3.94'' in size.Material: Sourdough Starter Kits is made of glass material with a lid and sealed storage to ensure the correctness of the fermentation process.Wide Mouth: Sourdough jar, Wide mouth, easy to add water or food, etc., and also easy to clean.With Scale: The bread making jar has a scale so that you can check the added food or water, and it can ferment the perfectly.Simply move the elastic band to mark your last recorded temperature and start feeding amount.Application: Baking supplies are suitable for home, kitchen, bakery, cafe, etc.also can be used as tea jar, spice bottle. Specification: Material : Glass Size Chart: jar: 15cmx10cm/5.91inchx3.94inch Package Includes: 1 glass jar with black lid1 cloth hat1 black spatula1 elastic band1 temperature paper Note: Please allow slightly errors due to manual measurement and different monitors. Customer satisfaction is our primary concern. If the product is somehow cracked or broken during shipping, please feel free to contact us. We will try our best to give you a satisfactory solution.