For those looking for descriptions/dims.: this is 13.5" long + ~8" flexible tube, making it 21.5" long. The brush is ~1.5X1"W, which means it would not fit in spaces smaller than 1". Suction is better with the brush section removed. Even so, the cross section is slightly larger than that of the standard attachment (also with brush removed) coming with the vacuum. It would not fit in really tight spaces like sides of refrigerators or dryer vent, which is what I was hoping for, hence only 4 stars. The bristles are stiffer than standard piece and it works nicely on baseboards for removing "stubborn" dust. Although the actual brushes are not interchangeable between the attachments, this one could replace the original on the vacuum and being smaller, longer, flexible, it is much more versatile. I also got the Home cleaning kit and I wish you could store the additional pieces on the vacuum, as it is a pain to constantly look for the right attachment while dragging the vacuum around. Like all Dyson products, the price is high, but in the long run, it will probably pay off because these machines do clean.