With the joint brush attachment, you can easily remove weeds and moss from paving joints, wall corners, and stair steps (Brush BR 16 eM required, sold separately). It also allows you to reach into corners and angles, thanks to the angled, rapidly rotating brush. The wheel on the opposite side enables easy and precise guidance. The joint brush comes standard with metal bristles for efficient weed removal in stone and paving joints. For gentle cleaning of softer stone types, such as sandstone, a brush with soft nylon bristles is available separately and can be easily replaced.