These milk tank cars are mainly for display or model railway enthusiasts. To use them, simply place them on your model railway track. When handling, be gentle as they are fragile items, especially the brass parts. Avoid dropping or rough handling which could cause damage. Since they have no lighting, there's no need to worry about electrical maintenance. To keep them in good condition, store them in a dry and clean place. If there's dust on them, use a soft brush to gently clean the surface. Remember, GPEX 781 is missing one end stirrup, so handle it with extra care to avoid further damage.