Magnetic Air Conditioner Drip Cushion, 23.6"X16.9" Window AC Rain Cover | Removable Air Conditioner Top Pad for Stop Dropping Noise of Water Drpping, Cuttable AC Foam Pad for Iron Surface. Easy to Use:This drip cushion with magnetic back,put it directly on your air conditionar top with foam on top, and it can be easily cut to fit your desired size.