Our round jar lids are made of materials and are suitable for most jar lid products. These storage solid bottle caps are anti-rust and , and are good tools for kitchens, homes and restaurants. It is safe food . and reusable household cover. Features - Color: Silver. - Material: Tinplate. - Size: 7.00X7.00X1.50cm/2.75X2.75X0.59in. - These covers are made of tinplate, , waterproof, rust- and anti- . They are a must-have for the home. - Easy to open and close, your items direct sunlight, and air. - Good sealing effect, they can keep your food fresh for a long time, and the split lid function is more powerful. - The surface is easy to clean. The structure is simple and easy to use, you no longer have to worry about food being exposed to the air. - The sealing ring and lid have good sealing performance and are specially designed for the standard mouth of the jar. Package list: silver rings covers