3M SandBlaster Flexible Finishing Pad, 320-Grit, 2.3-Inch by 5.57-Inch, 3-Sheet Lasts up to 7 times longer than 3M's conventional sandpaper of comparable grits 3M patented Cubitron mineral levels surfaces quickly and consistently while the flexible backing resists heat transfer and is comfortable to handle. Washable and clog resistant Flexible to conform to surfaces and hard-to-reach areas. Color-coded packaging for easier purchase selection.