Scotch-Brite Hand Pad PRO is a high-performance hand sanding pad. It features a very fine grade aluminum oxide mineral that cuts fast and fine, leaving a smooth, finished surface on metal, wood, plastics, ceramics, porcelain, glass, rubber and composites. The abrasive grain is embedded in a precision coated nonwoven, open-web material that resists loading and can be used dry or with water and solvents and rinsed clean for reuse. Unlike steel wool, 7447 PRO Hand Pads won't shred during use, rust after use, or create fine metal splinters. This multipurpose 6” x 9" sanding pad can be used by hand for precise control, with a hand pad block for uniform finishing, or on an in-line sander to cover large areas. For use on smaller areas, each of these 3M hand sanding pads has a perforation in the center, allowing use of either a half or full pad. This flexible sanding pad uses aluminum oxide abrasive mineral, which is a popular choice among industrial professionals because of its cut-rate and long life.