5 Pack High Quality Universal Microwave Oven Mica Sheet Wave Guide Cover Plates Hot. Include 5 Mica plates. Brand: FilterMee Specification: Material: Mica Thickness: 0.45mm/0.017'' Body Length: 106mm/4.2'' Total Size: 116mm x 64mm/ 4.5''x 2.5''(LxW) Description: 1. Feature: The mica sheet has good high temperature resistance and insulation property, it is used to prevent water or oil from splashing on the magnetron in the process of microwave heating. 2. Operation: Take out the old one from the microwave oven, use it as a stencil, cut the new mica sheet into a suitable size, insert it into the original place, save the extra mica sheet for future use. 3. Tips: Clean the mica sheet regularly, keep it clean and dry. Replace the new mica sheet in time to ensure that the microwave oven magnetron is in good condition. 4. Application: It is widely used in the microwave oven, toasters, fireplace, electric stoves, speaker equipment, DIY production, etc. 5. Guarantee: If the items arrived damaged, bent, not fit, undelivered, please contact us. We will be glad to send you with new and correct size replacements at no cost to you.