These four-axle sliding wall boxcars are widely used on the Rhaetian Railroad network. They are seen on more than just freight trains. Now and then, they are coupled to an express train. The walls can be opened completely, thus making the cars easy to load and unload. As a rule, entire pallets can be loaded with a forklift entering the car. Many of the cars are adorned with advertising, but there are also some running unadorned in an unpainted aluminum look.