Sander Backing Pad 3M Hookit Low Profile Abrasive Disc, Red, 150mm Pump Sprayers self sharpened granules last twice as self sharpened granules last twice as long as conventional industrial abrasives sharper cutting surface means that less pressure is required for reduced friction and wear the model with several clean sanding holes offers excellent dust extraction Hookit hook and loop style attaches firmly which lasts for weeks and weeks transparent UV technology for superior UV protection long lasting protection creates rich glow and darkness on both interior and exterior surfaces dries quickly and is black ideal for vinyl Uses Sander Backing Pad 3M Hookit Low Profile Abrasive Disc low profile design ensures better leveling and faster removal rates when flat sanding made with a medium density foam has a blunt edge for improved durability part of the 3M Hookit abrasive system