Scotch Brite
Yep, the real deal from 3M. They work fantastic, and you sure can't beat the price! I cut each sheet into thirds, and this pack will last me a long time.
Compare the price for this giant bundle, to the prices of some of the tool manufacturers (they usually sell this exact product by the sheet, for a minimum of $1.50 to $1.65 per sheet). This is 18 sheets for the price of about 4!