GET THE CRITICAL TOOLS FOR THE HOME FERMENTER: Have pro supplies on hand to convert regular mouth mason jars into maintenance-free vegetable fermenters! Equipment turns 4 jars into fermenters for making nutritious sauerkraut, kimchi, pickles & more! 8 PC SET INCLUDES: 4 Regular Mouth Pickle Pipes Airlocks & 4 Pickle Pebble Glass Weights. The self-venting caps are made of food & dishwasher safe silicone. The weights are made of non-porous soda lime glass to prevent spoilage. MAKE DELICIOUS PROBIOTIC SUPERFOODS: Ferment veggies (carrots, pickles & radishes etc.) in a brine or use Masontops acacia wood tamper (not included) to press tasty dry salted ferments like sauerkraut & kimchi. Great for your tummy and immune system! WEIGHTS HAVE FINGER GRIPS FOR EASY REMOVAL: Pickle Pebbles are easily removed by pinching the handy finger grip and lifting them out. Simply fill jars with veggies etc. & salt or brine and apply weights & airlock lids. Pickling has never been easier! FROM THE MASON JAR ACCESSORIES EXPERTS: Making your own fermented food is fun and easy when you trust the Masontops name. This set provides you with the most essential tools to convert 4 regular mouth jars into maintenance-free fermentation machines!