TSM Products Polish Fermenting Crock with Stone Weights, 5 L, Burnt Sienna Ideal for making healthy and delicious probiotic enriched, fermented sauerkraut, kimchi, cucumbers and more New design features a large, deep water channel to create an oxygen-free environment inside the crock Wide, 5" diameter opening Included stone weights keep your vegetables submerged underneath the brine or fermenting liquid Handcrafted in Poland