I do NOT blame the seller or the listing of this item so I am leaving a 5 star rating. I didn't pay enough attention to the information provided to realize my mistake. The original Rainbow floor brush I have is 14" wide and has a curve in the neck of the unit that attaches to the extension/tube. Over the years the brush had worn out and had to be replaced. While this set of brush heads is good, it's not the floor brush I was looking for. Difficult to stand up and use the brush on the floor. However, it is fine for other cleaning jobs like vacuuming the walls etc. Just FYI for those looking for a replacement for the original floor brush.