Upgrade your HO intermodal fleet in minutes with the WalthersProto Trailer Hitch Accessory Pack! Based on two of the most popular collapsible-style hitches used by the prototype from 1955 to the present, this easy-to-build kit includes parts for both Pullman-Standard and American Car & Foundry (ACF) hitches. Designed for easy installation on new or older flats (sold separately), the kit includes two each raised and collapsed hitches of each style - six hitches total- molded in orange to match prototype practice. Easy to assemble and install, complete instructions are included.