Compatible with standard wide-mouth mason jars, adding this glass weight will help keep your fermenting food items submerged.
For a successful fermentation, you'll want to make sure all of the food product remains below the level of the brining liquid. This will keep your veggies in an anaerobic environment where the "good" bacteria can do it's job while preventing mold growth.
This glass weight has convenient finger grips molded into it allowing you to easily remove it from the jar.