These regular mouth mason jar lids are tightly sealed with leak-proof airtight seal and turn mason jar into a drinking bottle, to storage some dry goods or liquid drinks, suitable for the freezer and refrigerator as well as dry and liquid storage. Dishwasher safe | Reusable regular mouth canning lids use with regular mouth mason jars to take some food on the go or storage food like beans and oatmeal in your pantry, flip cap is good for pouring or drinking liquid such as cold brew coffee, iced tea, goat milk, oat milk, lemonade, orange juice, smoothies | Mason jar lids with silicone sealing gasket provide a secure seal to leak proof, cover the mason jar flip top lid and then press hole cover hard. The airtight seal making sure mason Jars is tightly sealed and keeps your food fresh. Tips: Please screw the lid to the tightest to prevent leaking | The canning jar lids replacement your old jar lids is securely attached on mason jars, will never fall off or flop down while you are pouring, suitable for ball mason jars and other regular mouth mason jars to storage dry and liquid such as grains, candies, pickles, salad, milk, ect. | Reusable mason jar lids are designed for regular mouth mason jars, made of high quality plastic and silicone material, BPA free, leak proof, fashion design, a hole for easy to carry and hanging on kitchen, bike, backpack, ect.