Karebac 400 grit 2-3/4 in. Gold Stearated Aluminum Oxide PSA continuous rolls. 25 meters (27-1/2 Yards). Non-Loading Aluminum Oxide on C-weight paper provides and excellent finish for all applications including paints, primers and stains as well as raw wood, fiberglass, composites and metals. For use with half sheet and quarter sheet sanders. Also for hand sanding with glue to hold on sanding block (Sungold Part Number 98847).