This is a Bearing Pad Kit by Miller Industries. It includes all the partsneccessary to replace the wear pads on a 24′ 20 Series Steel Car Carrier. SeeFeatures for a list of parts that are included. (11) 12-0306021 5/16″x1 3/4″x47 3/4″ Bearing Pads (50) 12-040071 1/4-20×3/4″ Self Tapping Screw