The ST 11 pro has all of the features of the columbus range of vacuum cleaners: infinite adjustment of the vacuum power as well as an extendible telescopic tube for comfortable work adjusted to the type of floor covering. Brush vacuum function for the optional treatment of textiles and smooth floor surfaces. Rubberised castor wheels and swivel castors for smooth running. The optional electrical vacuum brush tool can be connected easily via the integrated socket and operated via the one-hand switch on the hand tube. Large operating radius thanks to 2.5 m suction hose and 15 m mains cable in a bright colour.