Kingdom Abrasives Pro-net 6-inch Hook & Loop Mesh Abrasives Ultra Fine and Smooth Assorted Pack. 5 discs each of 1000, 1500, 2000 & 3000 grits. A mesh product coated with Aluminum Oxide grain for long life and a Zinc Stearate for reduced loading. Excellent for moving dust away from sanding surfaces with or without dust extraction. Wet and Dry Sanding, Non-Clogging, Reducing Sanding Heat, and Long Life Time. Can be used on wood, metal, acrylic, paint, polyester and fiberglass. The six inch discs have a hook and loop backing for easy attachment to popular sanders. When used with our Abrasive Multi Holes Premium Long Hook velcro pad (2QSD62D) with a vacuum sander, dust Collection is incredible, and the abrasive lasts 10 times longer than conventional abrasives and also better performance than most of the name brand on the market.