5-inch 8-Hole Hook and Loop Red Resin Multi-Surface Sanding Disc 220 Grit 70 Pack: Sanding discs are made with high-performance Red Resin aluminum oxide and are perfect for final surface sanding and preparation before applying paint and stain, as well as light scuff sanding between coats of paint and varnish. When it’s time to switch to a new sanding disc, it is done quick and easy thanks to the strong and secure hook and loop backing. These sanding discs are manufactured with the highest standards in the industry. The double resin coating resists build-up and humidity increasing the life of the sanding disc High-performance aluminum oxide grain sands faster, lasts longer Fine grit sanding discs are ideal for sanding, de-whiskering, or scuffing in between coats of paint or varnish The vented hole pattern matches sander's pad for maximum dust extraction