"3"" DIA., ROLOC NH TP STYLE DISCS, VERY FINE GRADE SCOTCH-BRITE MATERIAL, AQUA-BLUE COLOR, THIS PRODUCT CAUSES LESS SECONDARY DAMAGE TO PARTS THAN THE CONVENTIONAL ABRASIVE DISCS USED IN THE PAST, WHEN REMOVING CORROSION, PAINT, OR PREPARING ADVANCED COMPOSITE PARTS FOR BONDED REPAIRS"