DESIGN FOR MASON JAR: 9 Packing most standard wide mouth mason jar, pickle jar and fermention jar,The ideal weight and dimension suitable for wide mouth mason jar (pint, quart, ½ gallon, etc).

For small batch fermentation, fermentation in glass bottles is easy and fun Thick GLASS: fermentation lid made from clear soda lime glass, the same glass used in the mason jars SIMPLE PRACTICAL HANDLE: Nonslip grip design make these heavy weights easy to put in and out of your mason jars.

If the weights are too deep in the jar, it can be easily picked up with a clamp, and also can prevents saltwater splashing HEAVY GLASS WEIGHT: Great for fermenting vegetables and pickling food, small batch sauerkraut, or other fermented foods kit.

Thick design for long life and heavy enough to keep food under the brine and submerged.

Great for Sauerkraut, pickle, Kimchi, and any vegetable and fruit ferments FLAT BOTTOM: The bottom is flat to prevent air bubbles forming underneath and prevent spoiling caused by excess oxygen.

non-porous so it never absorbs food odors, flavors, or colors