1. Super value for money100 Pack Classic PackageDesigned according to the requirements of most customers: 220 grit sandpaper is Ultra Fine, Ideal for Intercoat sanding of stain/ varnish trim on wood, metal plastics. 2. Strong AdhesionThe 5 inch 8 hole sanding disc back is a industrial strength hook and loop to provide a strong grip on sander, designed for heavyduty applications, Easy to install, prevent fell off. 3. Durability and LongevityOur sandpaper is made of Premium aluminum oxide blend, a superior quality formulation designed for fast material removal and long sanding life, one piece is equivalent to three pieces of ordinary sandpaper effect. 4. Anticlogging CoatingThe sandpaper is made of high performance stearate coating that reduces pitch buildup and clogging for maximum productivity.