For all marquees with crank lugs. Simple, quick, economical mounting: The conventional crank handle is then replaced by the retrofitted drive. Retract and extend at the touch of a button. The pneumatic switch allows you to operate the marquee in all weathers, without the risk of electric shock. Robust construction, low-noise running and maintenance-free thanks to continuous lubrication. UV- and water-proof due to materials reinforced with up to 50% fibre glass.