Complete Fermentation Kit: This 2-pack jar fermentation set includes four 64 oz wide-mouth jars, heavy-duty glass fermentation weights, durable plastic lids, upgraded dual-channel airlocks, silicone rings and grommets. Also comes Plastic Fermentation Lids, No Rust: Our food-safe plastic fermenting lids are designed as a smarter alternative to metal, eliminating rust worries and avoiding metallic flavors. The sturdy construction reduces wear and stress on silicone grommets, helping maintain a tight, reliable seal and extending the lifespan of every jar. Easy Ferment & Store with One Lid: Ferment and store in the same jar without changing lids. Simply remove the airlocks after fermentation and insert the included silicone stopper to instantly convert each 64 oz jar into an airtight storage container. This smooth ferment-to-fridge workflow saves time, reduces handling, and keeps your sauerkraut Wide-Mouth 64 oz Jar Design: Each fermentation jar features a generous 3.4" wide mouth opening, making it easy to add whole vegetables, pack cabbage, and clean thoroughly between batches. Clear ml and oz markings on the side of the jars help you measure brine precisely, monitor volume changes Upgraded Airlock & Glass Weight System: Dual-channel airlocks work together with the tight-sealing plastic lids to maintain a stable, low-oxygen fermentation environment, allowing gases to escape while keeping contaminants out. Heavy, lead-free, non-porous glass weights keep vegetables fully submerged in brine, preventing mold and ensuring safe Color: As Shown Material: Glass+Plastic Package Contents: 2*Glass Sealed Jars Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.