* Powered Unit
 
* Improved Power Truck
 
* Reinforced Frame
 
* 1960s Through Modern Era Schemes
 
* RP-25 Metal Wheels
 
* PROTO Max(TM) Metal Knuckle Couplers
 
Nobody knows more about "Safety First" than the Sperry Rail Service! For years, their familiar rail inspection cars, many of which were rebuilt from gas-electric "doodlebugs," barnstormed railroads large and small. Inside, special equipment ultrasonically tested each rail for hidden defects that could cause serious problems.
 
Now you can add this vital operation to your HO Scale railroad with Walthers models. Fully assembled and ready for service, the cars feature an improved power truck, reinforced frame, and a highly detailed body. Classic yellow paint jobs spanning the past 50 years and sharp graphics make these cars stand out as they roll across your layout.