On most railroads, a large part of the freight service is currently done with containers. The same is true of the Rhaetian Railroad in the Grisons. Since the same containers must be loaded on this narrow gauge railroad as on a standard gauge railroad, a special type of car was necessary. The load surface is lower between the trucks so that a car with a loaded container does not exceed the clearance gauge. In addition to containers, these cars can also be loaded with transport frames, such as for logs, which can be transferred complete either to standard gauge cars or - for the last few kilometers or miles to the destination – on a semi-truck rig. There are different types of these cars, chiefly in the location of the hand brake. On a single car, a hand brake crank is mounted on the brakeman's platform, on other cars a large hand wheel for activating the brakes is mounted on the side of the car's frame.