SAIT LA-X SAIT-Saver Coated Abrasive Belt, Portable Semi-Friable, 21 in Belt Length, 3 in Belt Width, 80 Grit, Medium Grade, Aluminum Oxide Abrasive, Cotton Backing, Closed Coat, Applicable Materials: Ordinary and Alloyed Steel, Cast Iron, Ferrous and Non-Ferrous Metals and Wood, X-Weight Backing Weight, Dry Operation