EASIEST MASON JAR FERMENTING AIRLOCK: These premium quality self burping ferment caps have a one way waterless valve to vent gas automatically while home fermenting vegetables. This simple one-piece airlock requires no water, burping or maintenance. FOOLPROOF FERMENTATION: Fermenting veggies is tricky without the right pickling supplies and equipment. Strong pressure presents & can blow off the cover or even burst the glass. Open air can spoil the ferments so our own-way valve prevents spoilage. MAKE PROBIOTIC-RICH FOOD AT HOME: Ferment your own sauerkraut, pickles, kimchi & more. Pickle Pipes can ferment any vegetable from cabbage to carrots, cucumbers, tomatoes, garlic, radishes & more. Get your probiotics economically & naturally at home! LOW PROFILE DESIGN: Our waterless pipe system is comprised of a low-profile lid that makes storage easier. Our silicone airlocks valve design take up less space and allow you to conveniently store your fermenting vegetables in cupboards and drawers. FOOD & DISHWASHER SAFE: Your Pickle Pipes are made of premium quality food-safe silicone. They are BPA-free & contain no phthalates, but are tough and durable and easy to clean. They can go into your dishwasher along with your wide mouth mason jars.