The four-axle sliding wall cars are indispensable in the rail operations of the Rhaetian Railroad. A big advantage of these cars is that they are easy and fast to load. As a rule, entire pallets are loaded with a forklift. Many of the cars are adorned with advertising, including car number Haikqq-y 5167, which is painted and lettered with a design for the brewery Feldschlösschen in Rheinfelden.