This is a replacement so you already have a robot vacuum and you know what you're getting: good corner cleaning brushes with the slightly imperfect "no tools""required" binding to theme. This is good for quickly untangling your machine from the cables, but manufacturing process differences mean some of them are too loose and won't hold up. (Note: In my experience, this defect rarely occurs. ) Unfortunately, the packaging method used here results in a lot of extra materials and an unnecessarily bulky box. She is over 11" long and about 6" wide. After just an hour of fiddling with the placement of the brushes, I was able to halve the required volume of the box: 5.5" x 6", no increase in thickness. You can see photographic evidence of my exploits in the attached image gallery. Why Yufi Does Is It The Environment? Why would Yufi do this to himself? The brushes themselves do not deserve 1 star. I got exactly what I expected and the brushes seem to match the car perfectly. But consider this: now I need a place to store this box with the two remaining brushes and I have to buy this product every year.