This is definitely inferior quality. The side brush kept falling off. Then once it's in place it's hard to remove, I pulled on the brittleness and they came loose. They also got lost very quickly. I tried all the side brushes in about 2 months. The kit also doesn't come with cleaning tools like the ones I received from Revain before. Edit: Now one of the side brushes got stuck and my vacuum kept throwing the error. I only order branded parts. Don't buy this