About this itemQuantity: each set contains 30 packs mason jar lids 70mm / 2.8 inches in diameter, 16 mm / 0.6 inches in height; These mason jar lids are only suitable for standard mud pots, but not for other types of wide-mouth bottles

Material and design: made of good quality stainless steel, durable and lightweight, built-in silicone seals ensure that the lid can be securely sealed; The edge of mason jar lid is designed with thread so that increasing the friction force to open the jarFeature: the metal cover is durable, not easy to damage and can be repeated to use; At the same time, our mouth mason jar lid is different from other plastic covers, and its composition does not contain BPA substances or other plasticizersGood sealing performance: the stainless steel jar lid has good sealing properties, so you don't need to worry about leaking problems that can contaminate the kitchen or other places after sealApply to: suitable for sealing the mason jars that stored spices, sweets, biscuits, fruits, jams, soft drinks, tea or coffee, nails, screws and other small objects