Finish Line Gear Floss Microfiber Rope
Finish Line's Gear Floss is the ultimate detailing tool and perfect for cleaning those hard-to-reach places. The Microfiber rope works by attracting, capturing, and removing dirt and grime as you slide it back and forth.
The rope is tear resistant, durable, and washable so you can clean your components as often as you need. The star-shaped grooves help hold dirt and grime deep inside the fibers as you clean between derailleur pulley wheels, cassettes, hubs and spindles, headsets, and more.
I prefer a rag folded in half for flossing my gear teeth. I will say that this does work slightly better. It's just more expensive. And I rarely need to floss so badly that this would tip the scale.
Remarkably good product for getting into all those nooks and crannies without shredding. Not sure how well they clean up between uses, (I was in a hurry the three times I've used them) maybe best to consider them throw away items, but they make cleaning between sprockets a breeze...especially the front chainwheels.