Factory outlets, the cash supply. Cleaning pen pen dedicated to the removal of mercury (silver) draw a line marking the handwriting on the leather, mesh surface, the effect is very significant. Surface lossless tasteless. Not to hurt the leather or fabric. This product is suitable only cleaning silver handwriting. Not suitable for cleaning traces of white, blue, black, red and other mercury pen. 10pcs / box, 1000pcs / carton, one from the grant.