Proper size: The size of rubber protective cover of each air frying tray is appropriate, which is suitable for most types of air frying tray scratches: These replacement rubber feet are and are critical to that there is no damage when loading and unloading pallets It can effectively protect the inside of the air frying tray from scratches Easy to use: just install our silicone protective feet on the metal sheet of the fresh-keeping plate of the air to use, disassemble and clean : food grade silicone, anti-skid,, and not easy to tear Package includes: 10pcs Air Rubber Bumper