GREAT DESIGN!  The best multi-function pen we have ever used! Features a ball point pen, a highlighter, a mechanical pencil, and a stylus plus an eraser under the top button.   To change the point, simply hold the pen horizontally and rotate the whole pen until the icon for the desired function faces up, then just click on button at the top of the pen. To retract any function click on the button on the clip. EASY!  Refills available for lead, ink, highlighter, stylus, and eraser. Designed by Adrian Olabuenaga, who set out to create the world's thinnest four-function pen and limit the amount of writing utensils people needed. Comes in a unique gift box as well.