Upgrade your fermentation setup with these plastic mason jar fermentation lids, designed for wide mouth jars. The advanced sealing mechanism and one-way valve provide a easy fermenting experience, reducing the need for frequent checks. These mason jar fermenting accessories are suit for preserving the integrity of your ingredients during fermentation. Features -Color:White -Material:Plastic -Size:13.00X9.00X9.00cm/5.11X3.54X3.54in -Innovative : the mason jar fermentation lids come with a oneway valve, allowing gases to escape while preventing air from entering, ensuring safe fermentation -suit for wide mouth jars: these wide mouth mason jar lids are designed to fit 86 mm jars, providing a secure seal to maintain the purity of your ingredients -longterm material: made from plastic, these fermentation lids for mason jars are designed to handle repeated use without compromising quality -Preserves food quality: the tight seal of these wide mouth fermentation lids make sure that your fermented foods retain their original taste and freshness -Streamlined fermentation: these fermenting lids for mason jars reduce the need for frequent lid removal, minimizing air exposure and simplifying the fermentation process Package list: 2 x Mason Jars Fermenting Lids