Description 4 Regular Mouth Canning Jar Sealing Lid Reusable Type Lids Leak Proof Lid Features - Material: Tin. - Color: Silver. - Size: 7. 2 x 7. 2 x 1. 5cm. ANTI- RUST- canning lids are made of high- quality stainless steel, durable and firm, not easy to rust or fade. The lid has a good leak- proof and air- tight effect, can seal the food well and leakage, and keep the food fresh and clean for a long time. WIDE APPLICATION- Suitable for sealing the mason canning jars that stored spices, sweets, biscuits, fruits, jams, soft drinks, tea or coffee, nails, screws and other small objects, please make sure the size before purchase. Jar lids: Made of tinplate and the sealing rings are made of silicone, can provide good sealing performance, air tight and leak proof, suitable for keeping food, grains, dressings and drinks fresh, no need to worry about leakage that may contaminate the kitchen or other places, safe and durable to use, suitable for long- term use. Split Design: Split- type lids leak proof design, the both to work together. And the thread design on the top of the canning ring canning increase the friction of the hand, making it easier for you to seal and open cans when making cans, split type lids reusable leak proof. Mason jar lids for canning it is specially designed to preserve food, you can also enjoy fresh food the next day.