Enjoy a 50 to 60 percent improvement in tear strength thanks to the flexible fiber-reinforced latex-saturated backing of this ProSand A975 medium grit paper H&L vacuum disc. The P-graded seeded-gel ceramic alumina abrasive provides a fast cut rate and long life and the water-based stearate coating and vacuum hold maximum dust extraction while minimizing loading. This disc is a superb choice for finishing and sanding with your random orbital sander and right angle grinder and the hook and loop back makes mounting and changing easy. Brand Name: Norton Sub Brand: ProSand Size: 5 in. Material: Ceramic Alumina Attachment Style: Hook and Loop Style: A975 Product Type: Sanding Disc Grit: 100 Grit Grade: Medium Number in Package: 10 pk Number of Holes: 8 Compatibility: Random Orbital Sander Right Angle Grinder Maximum Speed: 7000 rpm