Pentel SL12G 24/7 Highlighter, Chisel Tip, Bright Yellow Ink (Pack of 12) Chisel tip pen style highlighter with free-flowing, non-bleed through bright yellow ink. Pocket clip. Chisel tip highlights thick or thin lines. Ideal for highlighting, underlining and color-coding. Free-flowing ink delivery for smooth, even coverage. Vivid ink won't bleed through most paper.