Great Seal: The sealing ring inside the jar lid ensures the mason jar lids have excellent sealing performance, airtight and leakproof, tight sealing ensures it's suitable for keeping food, grains, dressings, drinks fresh, no need to worry about leakage. Split Design: The bands can be applied in combination with silicone fermenting lids and stainless steel sprout lids, the screw thread on the bottle mouth can increase the frictional force on the hands, making it easier to open the bottle. Sheet Material: Our regular mouth jar rings are made of sheet metal (not stainless steel), which can be reused many times, withstands high and low temperatures, can be used in refrigerators, microwaves, and dishwashers; our jar rings can be used with most brands of mason jars. Wide Application: Suitable for sealing the jars for the jars storing spices, candy, biscuits, fruits, jams, soda, tea or coffee, nails, screws and other small items, please check the size before purchasing. You will receive 24 Count Canning Lids + 24 Count Rings, a sufficient quantity for you to use, replace, and share with your family or friends. It fits most brands of wide-mouth mason jars.