The 3M Regalite Resin Bond Cloth Purple Sanding Belt 761D (120Y Grit) is a high-performance abrasive belt designed for professional hardwood floor sanding. Measuring 7-7/8 inches wide by 29-1/2 inches long, this belt features 3M’s patented Cubitron ceramic aluminum oxide mineral blend, known for its aggressive cutting action, durability, and ability to stay sharp longer than conventional abrasives. Ideal for use on bare wood or non-gummy finishes, it delivers faster material removal while running cooler, reducing the risk of loading and extending belt life. The belt has an extra-durable Y-weight cloth backing and a non-directional Sine-Lok splice, which minimizes chatter and allows the belt to be run in either direction—maximizing usability and performance.