Dryline Correction Film corrects instantly with excellent coverage. Strong tearproof film resists breaking and applies dry for instant corrections. Transparent side advance dispenser lets you monitor tape supply and see your errors as you correct them so you never use too much or too little tape. Ideal for correcting single or multiple lines before copying or faxing. Turn-screw feature allows you to rewind your tape in case of looping. Dispenser is nonrefillable.