Improve the realism and performance of your older HO streamlined cars with this conversion talgo truck set from WalthersProto. Designed to fit Walthers cars and those from most other manufacturers, the set features highly detailed one-piece sideframes, based on the GSC 41-N-11 prototype trucks used on many lightweight passenger cars. Each is complete with 36" turned metal RP-25 wheelsets and Proto MAX(TM) metal knuckle couplers.