Mica chips are used to protect food from splashing water or oil onto the magnetron tube during heating.The excellent insulation, the mica chip in the microwave oven is designed to protect the magnetron that emits the microwave working properly, which can extend its life.The mica piece is brittle and easy to break, so do not overbend.Clean mica cover regularly, keep them clean, dry and oil-free, and replace polluted mica pieces in time.package contains 10pcs mica sheet to meet daily replacement.colour:Photo ColorMaterial:Mica slicesize:64x107mmPackage Contents:10 * Mica FoilOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.