USC Gold Pro 6" Hook and Loop Abrasive Disc - Box of 50When value is critical, choose USC Abrasives. Gold Pro are the quality paper backed abrasives that deliver fast, effective results at a great overall value. Gold Pro multi layer construction combines sharp, precise grains with ultra durable backing and a specialized coating to consistently achieve the fast, uniform finish that auto body shops want. Box of 50 6" grip backing discs (hook and loop) Use Wet or Dry