Asahi Keikinzoku Co., Ltd. This is a 3-piece set of cocottes with lids. Made of ceramic. Suitable for gas stoves, microwave ovens, ovens, halogen heaters, and grills, and oven toasters. ★ Not compatible with IH cooking heaters. [Product Contents] Material: Ceramic for direct fire (high heat resistance) Size: 13.1 x 17 x height 9.5 cm (with lid closed) Type: Gratin dish Material: Ceramic Size: Small (diameter: ~ 17.9cm) Shape: Round Thank you for viewing.