Open web construction for final finishing. Convolutely wound on a core. Soft, conformable, flexible 2 density. Abrasive mineral: medium grade silicon carbide. Ideal for edge filler sanding; produces a smooth surface, resists loading for decreased downtime and reshaping is usually not required. Best conformability. Produces uniform grain finishes. Center hole diameter: 3". Density: 2. Grade: medium. Maximum rpm: 4500. Measures 8" diameter by 2" width. Gray color.