Fermented Vegetable Master: Half-gallon AIRTIGHT FERMENTING JARS: these fermentation jars come with airlock grommet lids that cleverly let carbon dioxide escape while preventing oxygen from entering, creating a cozy environment for probiotics in the fermenting veggies/fruits to grow so we can enjoy lots of the good stuff; if oxygen or moisture gets into the airlock jar, mold will grow, spoiling the vegetables/fruits and your hard work. EASY-TO-CLEAN GLASS JAR FOR FERMENTING: the half gallon fermenting jar is made of glass thats effortless to clean and dry, ensuring that you can make your favorite pickles or sauerkraut with absolute peace of mind THE PERFECT SIZE FOR MAKING PICKLES AND SAUERKRAUT: the fermentation jars with airlock is great for making small batches of fermented veggies/fruits, so you and your loved ones can enjoy their favorite pickles whenever they feel like it; the fermenting jars with airlocks are also easy to store, so you can put them away for a few weeks without having them take up precious space when left on the countertop WELL SIZED TO MAKING PICKLES AND SAUERKRAUT: the fermentation jars with airlock is great for making small batches of fermented veggies/fruits, so you and your loved ones can enjoy their favorite pickles whenever they feel like it; the fermenting jars with airlocks are also easy to store, so you can put them away for a few weeks without having them take up precious space or become an eyesore when left on the countertop SOLID LID AND FERMENTATION WEIGHTS INCLUDED: the half-gallon jar with airlock DIMENSIONS OF CULTURES FOR HEALTH FERMENTATION JAR WITH AIRLOCK: height - 6.3 (9.8 with airlock); diameter - 5.5; mouth diameter - 4.3; inclusive of 1 solid lid and fermentation weights; half gallon capacity