Maintenance free silicone airlock waterless fermentation lids for wide mouth mason jars. BPA free， mold free， dishwasher safe. 5 pack. Premium Presents brand.</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Automatically vent gas. No need to burp jars or maintain water levels in airlock.</li><li>Simple one piece low profile design. No messing with multiple bulky pieces.</li><li>Fun DIY fermentation canning tool. Fit on top of all types of wide mouth mason glass jars.</li><li>Great for making Sauerkraut， Kimchi， Pickles or any fermented vegetable probiotic foods</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51bJV77i2TL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41UHURpwAML.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51Vs9hXFTfL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51iP5eeAZtL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/414Q4gwwEVL.jpg' noproxy></br>