I have given this product a 5 because it is a great product. That being said, you'll have to fiddle with it a bit to keep the small parts together while using it, but I really don't mind if the whole setup only costs $8 with a bag. I use it in my shark detailing shop. I've heard they don't fit Dyson which has a slightly larger brand size but given how great it works I'd come up with some tape or something if you have one of those. My cars have never been so clean!