Specification: Color: as shown in the detailed picture Material: polyester cotton Product Size: 10 x 2.5cm/3.94 x 0.98 inch Package details: 4 x cloth jar covers Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between monitors, there may be a slight color difference. Package Content: You will receive 4 pieces of cloth covers for sourdough starter jar, which are perfect for jars with a diameter of 3-4 inch/7.62-10.16cm and can tightly fit various containers. The quantity is enough for your daily use and replacement. Product Material: Cloth jar covers are made of premium polyester cotton, which are smooth, refreshing, safe and long-lasting, and can withstand repeated use and remain its elasticity. Practical Jar Lid Cavers: The sourdough bowl cover with an elastic band is for initial fermentation process. It will fit snugly over the jar and protect your starter while allowing air circulation for an optimal fermentation and aeration. Exquisite Design: Our cloth jar covers are designed plaid, which looks very fresh and beautiful. Adding a touch of fun and freshness for your daily baking. They are reusable and machine washable, lying flat to dry after use. Versatility: These cloth covers are not only suitable for baking, but also perfect for covering tea cans. The breathable fabric allows for proper airflow and prevents debris from entering, ensuring a clean and successful fermentation process.