The personalized BIC 4 ink pen is a great promotional item in the healthcare arena. With the push of a button you can change the ink from black, to blue, to red and then to green. Nurses in hospitals and clinics really love these for writing in charts and they sell out on a regular basis. Let The Pen Guy make you up a free proof and after that is approved they can ship in 3 to 5 working days! If you need us you can email us at sales@ThePenGuy.com or call us at 800-532-8666.