NATURAL & UNGLAZED: These clay cover stones are made of whole natural unglazed terracotta. Completely natural and safe, 100% eco-friendly, and truly rustic. As produced from natural earthenware, it is a healthy, safe, delicious, and traditional way of cooking Dolma. HANDMADE & HIGH-QUALITY: These earthen cover lids have been delicately handcrafted from high-quality terracotta in the Cappadocia region of Turkey. FUNCTIONAL: It can be used in various ways such as a cover lid, grill press, bread warmer, wrapping stone, steamer base, etc. SIZE OPTIONS: We offer five different size options to fit all sizes of your pots. NOTE - Since the pottery is handmade and each one is unique, there may be slight variations in their measurements and dimensions.