Brand new 1/87 (HO) scale plastic model of Chrome Chassis Kit for Kenworth or Peterbilt Cab plastic model by Promotex. Brand new box. True-to-scale detail. Officially licensed product. Some simple assembly is required. Manufacturers original unopened packaging. Diameter of each wheel is approximately 0.5 inches. Chassis dimensions approximately L-3.5 inches long. This set includes 2 rear wheel sets 1 front wheel set chassis and tools.