The Microwave Glass Cooking Tray Is A Transparent Glass Plate That Spins During The Cooking Cycle And Provides Even Heat Distribution To Food Items. If Your Current Tray Is Damaged Or Missing, Replacing This Accessory May Alleviate These Issues. When Ordering, You Will Need To Confirm That The Center Of The Tray Matches Your Original Plate For Proper Operation. Replacing This Accessory Will Require No Disassembly Or Repair Experience.