DescriptionRound mason jar lids, with vibrant colors, is suitable for most wide mouth mason jar lid supplies. Meet the need of fermented kimchi, sauerkraut, pickles supplies. Food grade silicone material for safe food fermentation use. Durable and reusable lid for home kitchen.Features- Color: Random. - Material: silicone, stainless steel. - Size: About 8.4 x 8.4 x 3.5 cm/3.31x3.31x1.38 inch. - This jar lid is made from safe and durable material, for kimchi fermented use. - Vent gas automatically, no need to burp jars daily to release excess pressure and maintain water levels. - Cover the jar with a fermenting airlock lid reducing the risk of bottle crack. - Durable and reusable lid for home kitchen. - Vibrant lid color for easier recognize you bottle, and well organize them when stuffed different food at home.