Optimal Fermentation SolutionThis fermentation weight is designed to keep your vegetables submerged under the brine, providing an optimal fermentation environment.High Quality MaterialFermenting Lid made from food grade glass, our Glass Weights for Fermenting is safety for use, allows you to submerge fruit and vegetable ferments in the brine longer and easier.Universal FitFermenting Lid size is 7.2cmx3cm/2.83inchx1.18inch, fits most wide mouth canning jars regardless of jar ounce capacity.Good sealingWide Mouth Fermentation Lid have good sealing, as well as easy to place into and remove from your jars, ensuring a fermentation process.Durable and ReusableThe fermentation weight is sturdy and can withstand repeated use, allow the glass fermenting weights wide mouth lids to help make batches of sauerkraut, tomatoes, carrots, and other fermented or pickled foods. Package Includes: 1 Fermentation Weight Note: Please allow slightly errors due to manual measurement and different monitors.