Norton 3 x 24 in. ProSand Cloth Portable Belt 50 Grit R831 ZA Pack of 2 Engineered with a premium, self-sharpening zirconia alumina abrasive, ProSand R811/R816/R831 coarse grit cloth portable belts deliver excellent cutting on any surface. Featuring anti-static and proprietary, patented grain technologies, these belts ensure a cleaner work environment and produce a super-fine scratch pattern and finish. When compared side by side to the next leading competing product, these durable belts cut faster and last significantly longer. A great choice for coarse grit stock removal, these portable belts are conveniently packaged for protection during transport and easy storage. Features 3 x 24 In. ProSand Cloth Portable Belt 50 Grit R831 ZA Premium, self-sharpening zirconia alumina abrasive provides superior cut on all surfaces, lasts substantially longer, and cuts faster than the next leading competitor in side-by-side comparisons Proprietary patented grain technology produces one of the finest scratch patterns in the industry for finer looking finish Anti-static technology increases dust collection efficiency for cleaner work environment and less clean up Convenient packaging provides easy storage and protection to and from the job site; best choice for coarse grit stock removal applications USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.