Hello everybody. Those looking for an alternative to herkörmlichen dust collectors made of foam, has found here. Processing is in and of itself in order. Could be a bit better for the rather high price already. The holes fit for through bolts perfectly. Although the punch in my opinion wrong direction side, but very little bother. Furthermore, there remains a lot of dust hanging inside. In any case, more than in the normal Mash grids. The resulting cleaning is also easier on the hand, as for example the foam. Easy with a vacuum cleaner or a damp cloth.