For this brush ring holes are drilled in the core of the brush, using computer-controlled machines. After this process bundles of filling material are tufted into the holes and fixed with a steel staple. The brush rings tufted are used to make a roller brush or sweeping roller. This is done by putting the brush rings on to a machine core. The roller brush can then be used for removing leaves, snow and other objects, such as rubber from tires, from large surfaces, car parks and runways.