Parts Included: 4 Pack Fermenting Weights 1 Pack Protective Package Product Specifications: Item condition: New Size: Diameter 2.68 Inch, High 0.98 Inch Item weight: 6 oz/ each Material: Food safe glass for mold-free Care and Cleaning: Aozita fermenting weights are dishwasher safe. The problem with the flat weights is they are very hard to get out. The easy-grip top is so handy! Remove for tasting becomes a joy and pleasure. Everyone can hold down their ferment 100% in a wide mouth mason jar. These weights do this effectively. Aozita glass fermention weights are made from safe glasse, they're heavy enough to push down fermenting veggies and to keep veggies submerged in the brine, which should reduce/eliminate any funky mold, mildew, or fungus on exposed veggies. With a little "handle" that makes so easy to put in and pull out of jars. One-Year Guarantee: If you have any issue with our products, please don't hesitate to contact us, we will try our best to find a satisfactory solution for you within 24 hours.