Features: Leak-Proof Seal: Our regular mouth canning lids are designed with a metal sealing ring that creates a tight and secure seal preventing leaks and spills during home preservation canning food. Durable Material: Made from quality metal these canning lids are built to last and can withstand the pressure of canning and is rust-proof. Regular Mouth Size: These canning lids are specifically designed to fit regular mouth jars making them a versatile and convenient choice for all your canning needs. Versatile: Our canning lids are perfect for canning a variety of foods including fruits vegetables and sauces. After-sales Service: If you have any problem please contact us immediately we will help you solve it as soon as possible. Specifications: Material: Tinplate Regular Mouth Diameter: 2.67inch/7cm Regular Mouth Height: 0.55inch/1.4cm Jar Lid Diameter: 2.68inch/6.8cm Notes: Please note that due to the influence of light and screen slight chromatic aberration is acceptable. Please allow slight measurement error due to manual measurement. includes: 12 *Canning Lids 12 *Cover Plates "