Use to do the main portion of the floor heavy stock removal leveling floors and achieving a very smooth finish. Mount to a belt machine for continuous sanding. With heavy E F and combination paper backings for quality cut and strength on the job. Features . Silicon carbide. Size - 8 in. x 50 Yard. Grit - 80. Dimension - 9.5 x 9.6 x 9 in.. Item Weight - 13.2 lbs.