CONTENTS: Pack of 4 glass weights for keeping vegetables submerged during the fermentation process.KEEPS VEGGIES IN BRINE: A critical step in making healthy and delicious fermented food is keeping the veggies submerged in the brine to prevent spoilage. These beautiful glass stones keep veggies out of the open air inside the jar.PERFECT IN REGULAR MOUTH MASON JARS: All of Masontops' accessories are engineered to function perfectly with mason jars, and our fermentation weights are no exception. They are the ideal weight and dimensions to fit your regular mouth mason jars.FINGER GRIP LIFT OUT: Easily remove the pickle pebble with the handy finger grips.FOOD-SAFE, NON-POROUS SODA LIME GLASS: Pickle Pebbles are made of certified, lead-free, food-grade soda lime glass. The glass is non-porous and made of the same high quality glass as Mason jars.DIMENSIONS: Pickle Pebbles measure 2.1" in diameter by x 1.1" high.CARE: Washing Pickle Pebbles by hand with soap and water is recommended. They can also be washed in the dishwasher in the top rack as long as no extreme heat setting (ex. steam) is on. Pickle Pebbles are not intended for boiling or heat-processing.