Norton Pro Sand 9" x 11 Tired of buying cheap sandpaper that clogs or doesn't last? If so, now you can afford to step up professional quality abrasives. These sheets offer superior sanding performance for a premium surface finish. Excellent on all surfaces and coatings. They will not clog, tear transfer color. Aluminum oxide. Handy Packs contain 3 sheets. Job 20 sheets. Premium heat-treated aluminum oxide abrasive P-graded 3X longer product life faster cut rate than conventional products. Best sanding hard materials: metal, hardwood, glass, granite, ceramic, plastic, fibreglass, stainless steel, cooper, automotive body repair