This is a Bearing Pad Kit by Miller Industries. It includes all the parts necessary to replace the wear pads on a 21’6″ & 22’2″ Steel Car Carrier. See Features for a list of parts that are included. (10) 12-0306007 1/4″x1 1/4″x54″ Bearing Pads (2) 12-0306009 5/16″x1 1/4″x60″ Bearing Pads (50) 12-0400367 1/4-20 Nylon Lock Nuts (50) 12-0403009 1/4-20×1″ Hold Down Screws (10) 12-0403010 1-4-20×5/8″ Self-Tapping Screws