Aluminium oxide abrasive. Hook and loop backing for quick fitting. For sanding wood, paint, varnish, plastic, plaster and metals. For use with all 1/2 sheet 115 x 230mm sanders. 2 x 60, 3 x 80, 3 x 120 and 2 x 240 Grit. Aluminium oxide abrasive. Hook and loop backing for quick fitting. For sanding wood, paint, varnish, plastic, plaster and metals. For use with all 1/2 sheet 115 x 230mm sanders. 2 x 60, 3 x 80, 3 x 120 and 2 x 240 Grit.