Fine Fermentation Kit: this package includes 8 pieces of stainless steel wide mouth lids with silicone stoppers, 8 pieces of airlocks, 8 pieces of glass weights, 8 pieces of silicone sealing rings, sufficient fermentation tools for your fermented vegetables, eggs and meat demands, giving you a complete, convenient and unforgettable using experience; Please be aware that the jar is not included in the package, and the lid and sealing ring may match most standard jars Stable Stainless Steel Fermenting Lids: each lid is made of stainless steel with sliver color, measuring about 86 mm/ 3.39 inches in diameter, and each is equipped with a grommet, not easy to rust and fade, featuring a good leak tightness and durability, sturdy for your long time use Delicate Airlocks for Fermenting: our airlocks are made of white quality plastic, with a total length of about 11 cm/ 4.33 inches, 3.8 cm/ 1.5 inches in diameter on the top part, reserving enough length and width for the exhaust port; You just gently remove the top cup, which gases can be discharged, and then seal the hole to enclose, convenient to operate Glass Fermentation Weights: these ferment weights are made of transparent quality glass, measuring about 6.99 cm/ 2.75 inches in diameter, 2.54 cm/ 1 inches in thickness, and 7 ounces in weight, proper size and heavy enough to keep vegetables in the wide mouth lids, favorable for accelerating the fermentation Creative Sealing Rings: the sealing rings in this vegetable fermenting kit are made of white quality silicone, matching with the lid to use after completing the fermentation, which will reserve the fermented food for a long time