These pipe cleaners clean and work as advertised. For the price they are worth the money!
These clean pipes well and also double as a fun cat toy, according to my cat.
I keep a few bundles in my kit, the combination of soft/stiff bristles is priceless for getting things clean...
It was hard getting my bristle to get into tough areas of my pipe since it would stay angled. The bristles are quite effective though.