For a multi-purpose health-conscious giveaway, this BMI pen will do the trick. This handy writing utensil measures 7" x 2 1/4" x 5/8", is available in several colors and features a manual Body Mass Index (BMI) calculator with patented stylus tip ballpoint pen. The convenient slider and rotation inner barrel provides quick and easy-to-read results. Not compatible with touchscreen devices. Customize with an imprint of your company logo and message to write your next success story!