3M 6" 740I STIKIT IMPERIAL "E" WEIGHT SANDPAPER DISCS - This product earns the 3M Purple color which indicates the latest 3M technology, greatest cost/value and highest quality available. This uniquely blended Cubitron Stikit mineral construction and tough "E" weight backing provides for a fast cutting, longer lasting abrasive. Resin bonded for heat resistance. Excellent for stripping paint or sanding marine fairing compounds. Disc is 6" x NH. Product is sold by the disc. 50 discs per box. 4 boxes per case.