Product description: Good warm temperature resistance, superb insulating propertiesMake of Mica matereial,Environmental protection, insulation, electrical resistance, etc. Wide fluctuate of purposes Use of long-life Material: Mica, Paper, Silicone Resin Size: 99x108mm Manual measurement, size will have slight error Packing Includes: 7Pcs Microwave Oven Mica Plates