I find this product very annoying: the strands catch on the teeth, and it gets jammed. My wife, when she uses it, she does not have that problem, but then, I haven’t got her patience. I bought some blanket yarn for £8, you get 100 metres of it, and it is much better than this floss. It has no strands, it is just the perfect thickness, and no bits come off at all. So smooth, and so much easier to use, and you get the equivalent of these 400 flosses for the same price.

Never thought I'd be enthusiastic about a cleaning product. Simple but really effective for cleaning cassette, chain and derailers. Takes time but if you want your bike properly clean, you need some of these in your kit bag. Plus afterward use, a quick wash with a grease removing cleaner, dry and reuse.