6-1/2" I.D.Wheel Chock - Fits tire widths up to 6-1/2". This Pingel removable Wheel Chock is specifically designed for corrugated truck and van beds but will also work great on plywood trailer floors. The chock is quickly and easily removed from the bed, leaving only the near flushmounting bracket that will accept 3-1/2" or 6-1/2" removable wheel chocks. The Pingel Removable Truck Bed Wheel Chock feature a steel tube construction with a chrome finish, steel mounting bracket, quality grade 8 bolts and nuts, washers, anchors and T-bolt. Additional Wheel Chock mounting bracket kis can be purchased separately to enable the installation of the Wheel Chock in alternate locations.