MODEL FEATURES: : Fully assembled and ready for your layout New 3-packs make modeling a complete train easy Separately applied wire grab irons and etched end platforms Weighted for optimum performance Razor sharp painting and printing 33” solid nickel silver wheels with RP25 contours operate on all popular brands of track Body mounted McHenry operating scale knuckle couplers Window packaging for easy viewing plus interior plastic blister safely holds the model for convenient storage Replacement parts available Minimum radius: 18” PROTOTYPE AND BACKGROUND INFO: : Open top cars, such as gondolas, have been a mainstay on railroads for decades as they are ideal for carrying large, bulky loads such as coil steel or scrap metal loaded by crane.