Multiple Uses: Silicone Airlock Rings Ideal For Preparing Tasty And Healthy Kimchi, Ginger Carrots, Hot Sauce, Sauerkraut, Pickles And Other Fermented Foods With Ease And Safety. (Package Includes 1*Lid + 1*Airlock, Many Colors Are Available)Premium Silicone Ring: The Silicone Ring Creates A Tight Seal Between The Lid And The Jar,Set Airlock Bunges Fermentation Preventing Oxygen And Dust From Contaminating Your Ferments.Fit And Convenient: The Inner Size Of The Lid Is About 86Mm / 3.39Inch (Approx.), So The Lid Can Be Used For Bernardin, Kerr, Ball. And It Fits All Brands Of "Wide Mouth" Mason Jar In Pint, Quarter Or Half Gallon.Sturdy And Convenient:Airlock Fermentation Plug Set Use The Sturdy Lid To Improve Your Kitchen Organization. Makes A Great Gift For Fermentation.Great For Fermentation: Silicone Airlock Rings Lid Can Well Speed Up The Fermentation Process For You.