Suitable for Oven & Microwave: Hakan Athens Clay Bowl Set of 4 is not suitable for use on the stove, but you can easily use them in the microwave and in the oven. Lead-Toxic-Free & Glazed Inside: These clay serving dishes are made of all-natural glazed terracotta. It is lead-free, natural, safe, eco-friendly and rustic. Since it is produced from natural soil, it is a healthy, safe, delicious, traditional and rustic cooking method. Healthy, Food-Safe and Delicious: With these antique clay bowls, you can cook roasted chicken, meat, mushrooms, vegetables, yoghurt, rice pudding, desserts, etc. You can prepare many recipes for delicious and healthy meals. Important Warning about Dimensions: Since the pots are handmade, each one is unique and made for you. There may be slight differences in size and dimensions. Our set consists of 4 pieces of clay bowls, each bowl has a capacity of 14.2 ounces (420 cc) and measures 5.7 inches (14.5 cm) in diameter and 1.7 inches (4.5 cm) in height.