SUPERIOR QUALITY: TOMO Stoneware combines innovative design with traditional, quality craftsmanship. Make nourishing, probiotic rich foods like german sauerkraut, pickled vegetables, kombucha, and kimchi at home. Every detail was considered to develop this restaurant-grade fermenting and pickling crock. KIT INCLUDES: 2 weights and wooden tamper. DURABLE CERAMIC WALLS: We sourced the finest natural earthenware and rigorously designed our vessels to last a lifetime. Earthen ceramic blocks UV light so all nutrients and healthy enzymes remain intact for maximum sour deliciousness! WIDE WATERLOCK SEAL: The seal creates an oxygen-free environment where gases can escape while keeping air out.