The brush head can be adjusted to fit the length of the primary To be able to sweep the area with a narrow gap. Because the same can not be swept under cabinet areas such as the Strait.
To adjust the brush head to be able to adjust the length in the introduction to be able to sweep the area to narrow the gap, because the original can't be swept under a van, Strait.
to make the brush head can be adjusted to adjust the length of the initial area so that you can sweep a narrow gaps could not be swept away because of its area under a strait, for example.