This is a "Yaki-Zanmai" multi-tray made of far-infrared radiating, ultra-heat-resistant new ceramics. It fits perfectly in a toaster oven, making it easy to bake and warm food with just one tray. The central oil well catches oil, and the wavy shape prevents food from sticking, making it easy to clean. 【Material】New Ceramics 【Compatible Heat Sources】Toaster oven, gas stove, grill, etc. The box has been cut at the edges for storage. Thank you.