The highlighter features a large ink reservoir for extended marking performance. It is inkjet-safe, ensuring that all colors do not smudge inkjet prints and handwritten texts. This highlighter is ideal for use on paper, fax, and carbonless copies, drying in seconds. It has a twist cap for easy opening, and the polypropylene casing and cap ensure durability. Additionally, it is airplane-safe, with automatic pressure equalization to prevent leaking during flights. The highlighter is also refillable.