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 canning lids use with mason jars to take some food or storage food like beans and oatmeal in your pantry, flip cap lid good for pouring liquid such as cold brew coffee, iced tea, goat milk, oat milk, lemonade, orange juice, smoothies mason jar lids with integrated silicone gasket provides a secure seal to leak proof, cover the mason jar flip top lid and then press hole cover hard. The airtight seal making mason Jars is tightly sealed and keeps your food 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 mason jars to storage dry and liquid such as grains, candies, milk, . Reusable mason jar lids are designed for mason jars, made of high quality plastic and silicone material, free, leak proof, fashion design, a hole for easy to carry and hanging on kitchen, bike, backpack, . Inner diameter size: 8.6cm Material:plastic colour:Random Color Note: Random color, don't accept the specified color. Package Contents: 6 x Mason Jar Lids Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.