Steering wheel button for campers

The steering wheel knob was delivered quickly. The design makes a massive impression. The installation was not a problem. The black plastic knob turns smoothly on the spindle, which is the fixing of the whole part at the same time. The steering wheel knob was installed in an older mobile home, which has no power steering. After checking with the legal department at a österr. Motorists Club a steering wheel button must single approved and entered in the vehicle papers. Unfortunately, the product has no CE mark and may therefore not be used on public roads in Austria. Information German colleagues is so ever banned a part in Germany and is punishable by fines, points and even with the ban continue. The product is fine, because the Unbenützbarkeit and also no indication on the product side, unfortunately, only two stars. I would not buy it.