United Abrasives-SAIT 77117 4-Inch Sand-Light Non-Woven Disc, 10-PackSAIT 77117 Sand light Non Woven disc, maroon, general purpose. Excellent for removing surface coatings and light rush. Non woven synthetic fiber impregnated with abrasive grain for surface conditioning without damage to or removal of base material. Resists loading and heat build up. Resilient shape and performance characteristics for contour and radius applications. For use on stainless, metal and wood. United Abrasives is a world leader in