One-piece silicone teat for waterless fermentation lids for wide-mouth mason jars eliminate mould formation without daily maintenance. exhaust gases and prevents oxygen exposure automatically. 4 wide pickle pipes that work with any wide mouth mason jar such as Ball, Kerr, Bernardin and more. BPA food grade silicone, dishwasher safe. No need to drip gles, automatically vent gas, no need to push gles on daily to relieve overpressure and maintain the water level. Ideal for making sauerkraut, kimchi, pickles or fermented probiotic foods.