Norton 662611-48572 First Choice 2-3/4" x 17-1/2" 40E Grit Longboard Job Pack - 5 Sheet Self-sharpening NorZon grain improves cut rate High-strength blue latex paper back improves performance and flexibility, while reducing curling and edge chipping Superior bond system optimizes grain adhesion and extends the life of the product Ideal for sanding filler Retail packaging is ideal for both the shop professional and the at-home hobbyist