A rubber seal connects tightly to hard floors, amplifying the effect of the vacuum, while protective pads prevent the cover from scraping on the floor causing damage.
A strong polycarbonate shell stands up to the rigors of long-term use, and stainless-steel barriers are used to prevent longer items such as power cables from being wrapped up in the brush.
One handed attachment and removal makes light work of taking off the cover to reach the brush.
The cover over the brush bearing integrates bends and other structures to trap hair before they tangle in the bearing.