The MultiBrush Speedcontrol can be easily converted from a grout brush to a flexible surface brush for stone and wood cleaning in just a few seconds, thanks to its practical interchangeable attachment. The second-generation MultiBrush is equipped with a stepless speed control in the handle area, providing added flexibility in use. This allows stone surfaces or grout to be powerfully cleaned of dirt at speeds of up to 1,600 RPM, while the same device can gently incorporate nourishing oils into a high-quality wooden floor on a terrace at 450 RPM.