Convenient and compact, the Pentel twin Checker Dual-tip highlighter features two color highlighter tips on each end which are perfect for highlighting and color-coding important documents. Each pen includes yellow as its main highlighter combined with a variety of other colors to choose from (orange, Green, Pink or sky Blue). durable tips can withstand strong writing pressure and dispenses bright fluorescent, long-lasting ink that will continuously highlight for over 260 feet (or nearly 100 yards). highlighter pen is handy to take anywhere with its slim barrel and durable pocket clip; snap-tight cap prevents ink from leaking and drying out. Easily write thick or thin lines with the sturdy chisel tips. The highlighters include pentel's limited lifetime warranty.