Norton® NorZon® BlueFire R823P 120 Grit Plyweld® Joint X Weight RR-Flex Wide Belt measuring 37" X 60" is made of zirconia alumina abrasive material and is ideal for all metal as well as wood applications. Belt with polyester waterproof cloth backing has long life on high-pressure, dry/wet, heavy-duty metal applications and is optimal for fine grit applications. Durable open coat cotton belt has moderate flexibility and is suitable for stock removal on wood with limited loading. It is sold as 5 per pack.