I have one at home and I don't use it- the bristles are very stiff and hard, and I think they could do damage to the o-rings in your chain.
I use a small, one inch paintbrush ( cut the bristles down to give it a little stiffness) and a bit of WD 40 or kerosene to clean my chain- works easily. Then oil with the same brush and a little gear oil (available anywhere in the world.).
...........shu
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