The HO AutoFlood III Coal Hopper is a versatile addition to any model train layout. Built with detail in mind, this coal hopper features a realistic design that enhances the authenticity of your railroad scene. It comes in a convenient pack of six, allowing modelers to easily create a dynamic train setup. The NDYX designation indicates the specific type of the hopper, making it an excellent choice for those looking to accurately portray coal transport in their layouts.