DescriptionThis is a set of fermentation tank lids, which are made of high-quality materials, durable and can be used for a long time. Fermenter lids can make mason cans airtight and anti-mold during fermentation. After fermentation, take off the airlock, close the and store your fermented food on right place.Features-Color: Assorted color. -Material: Silicone. -Size: About 8.60X8.60X2.00cm/ 3.38X3.38X0.79in.- High-quality materials and fine workmanship make these lids durable and can be used for a long time. - After fermentation, take off the airlock, close the and store your fermented food on right place. - Fermenter lids can make mason cans airtight and anti-mold during fermentation.- Fermentation Lid airlock can release the fermentation gas into the atmosphere and keep out of the oxygen from air. - Share with your friends and family as they are practical fermentation lids.