"It's steel, its wool, the price is good. It rubs stuff to a nice finish and doesn't disintegrate. What more could you ask for? For extra fun, amuse the kids by burning it in a blow lamp (just remember your PPE)."
"This is the only steel wool I use for cleaning copper pipes. Brings them up gleaming in no time at all. Also very good at blocking up holes to stop any unwanted mice or rats getting into your property."