The HO Athearn 40 Ft Single Door Box Car Nickel Plate Road NKP #29511 is a vintage replica of a 40' Single Door Boxcar in brown color. This pre-built model features pressed steel, plastic, and diecast materials, with a scale of 1:87 and a height of 2 inches. It is a collectible piece for model railroads and trains enthusiasts, representing the Nickel Plate Road corporate roadname and manufactured in the United States during the 1980s. This tank car is a great addition to any transportation-themed collection.