PREMIUM QUALITY: Premium resin-over-resin bonded discs cut faster and last longer UNIFORM FINISH: Ultra-precise aluminum oxide grain placement results in a more uniform finish FEATURES: Hook & Loop backing allows for convenient disc replacement, cooler sanding, and clog-free dry sanding; 15 pre-punched holes offer increased compatibility with a variety of back-up pads and dustless vacuum systems PROFESSIONAL VALUE: Box of 100 discs, just 1 box will last through many of the toughest jobs MADE IN JAPAN: Manufactured by Kovax, leaders in coated abrasive technology for over 90 years in the automotive, metalworking, and woodworking industries Competitive pricing and excellent quality make TRI-PRO Super-Tack Discs a good choice for your everyday sanding needs. Full resin bonded, they cut fast and leave a uniform finish. Perfect for clog free mid-range sanding on all kinds of surfaces.