Pen-style highlighters have a flexible loop which assures you will not suffer a loss of the highlighter of yours. Easily connect to three ring binders, planners, hand bags and a lot more. Observable ink for the printer resource alerts you well before you run of ink. Pigmented, fluorescent the sales of ink presents bold colors, and the clean ink flow gives constant highlighting. Narrow chisel application is great for each underlining as well as highlighting. Ink is certified, odorless, and quick-drying AP nontoxic.