Features: brand new and high quality Mica plate is mica paper with silicone resin by gluing temperature and pressed. As a kind of heat resisting and insulating product. It is widely used for home appliances such as electric hair-dryer, toaster, microwave oven, warmer etc. Easy to track and cut; just use the old shell as a template to change the mark, and then just use scissors to cut the new shell. Oven cereal is a good household accessory, which helps to repair home appliances and extend the service life of microwave ovens, hair dryers, ovens, etc. These mica plates sheets aimed to send radiation from the magnetron to the cooking chamber, to prevent food particles, steam and vapor from entering the space behind the cooking chamber where the electronic components of your microwave are located, protect the microwave oven from burning. Package Includes: 1 x Waveguide Cover Specifications: Material: Mica Sheet Type:A/B/C/D Size: 12.6x4.6cm/4.96x1.81inches; 10x5cm/3.94x1.97inches; 11.5x4.6cm/4.53x1.81inches; 11x7cm/4.33x2.76inches note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.