I needed a new filter and bag so I found this non-OEM kit at a fraction of the cost of genuine Deebot parts. Everything in this set is very cheap in comparison. The filter falls out of the holder and its thinner material with a different number of folds. The replacement side brushes are a different height than the original ones, so they don't sweep the edges very well. They also creak when moved, so that a methodical squeaking now occurs in addition to the usual sucking noise. As other reviewers have pointed out, the bag's material is thinner; not the HEPA filtration you get with genuine parts. Replaceable roller bristles are shorter, thinner and uneven. All in all, this is a terrible purchase and not a single piece of kit is worth buying. Spend more and get genuine parts!