Packing list: 50 mason jar lids. Size: 3.38 inches/8.6 cm in diameter. [Color] The color of the lid is silver, simple and stylish. In addition, you can use a marker to mark food-related information on the lid, or write the date on the lid to help you record the time of food production and purchase. [Good tightness] The seal is leak-free and tightly sealed. The lid of the mason jar is equipped with a silicone ring. The canned lid is suitable for keeping food, grains, seasonings, and beverages fresh. You don't need to worry about the leakage of sealing material contaminating the kitchen or other places. [Material]The Wide Mason Jar Lids are made of tinplate, and there is a layer of silicone ring inside and can be reused many times.canning lids are resistant to high and low temperatures, so canning lids are suitable for refrigerators, dishwashers and microwave ovens, you can use Canning Lids to replace your rusted metal lids The lid can be used to store leftovers, fresh sauces or juices, dry goods storage, spices and other small items. [Anti-rust effect] The canned lid is rust-proof and anticorrosive. You can use the canned lid to replace the rusty metal lid. Can be placed in the refrigerator. Material:Tinplate colour:Silver Package Contents: 50 x Jar Split-Type Lids (Not Include Band) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.