Made of mica material, eco-friendly and durable in use. Offers good high temperature resistance and excellent insulating properties. Helps maintain the efficiency of the microwave oven. Each mica plate sheet measures approximately 116x64 mm (4.6x2.5 inches). Can be easily cut to size with scissors for convenient replacement. Designed to allow radiation from the magnetron to pass into the cooking chamber while preventing food particles from entering the area behind the chamber where electronic components are located. Effectively protects sensitive internal components and is built to last the lifetime of the microwave. As a heat-resistant and insulating material, it is widely used in household appliances such as hair dryers, toasters, microwave ovens, and warming devices. The microwave oven waveguide cover is compatible with most microwave oven models.