Fangrui Product Details Mason Jar Lids Wide Mouth Package: Each Set Of 20 Wide Mouth Canning Lids With Sealing Bands. In Your Home And Meet Your Various Canning Needs. Jar Lids: Made Of Tinplate, 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. Wide Applications: Wide Mouth Jar Split-type Lids And Bands Are Suitable For Sealing The Canning Jars That Stored Spices, Sweets, Biscuits, Fruits, Jams, Soft Drinks, Tea Or Coffee, Nails, Screws An