This unique custom pen will leave quite the impression on doctors, nurses, training staff, and other medical professionals. Its four-sided barrel helps it stay put on a desk or table, so your imprint is always visible and the chart is easier to reference. With a conversion chart right on the barrel, this promo pen help users go from Celsius to Fahrenheit, Quarts to Liters, ML to CC and other helpful units. They'll always want to have this pen by their sides. Plastic barrel. Click-retractable ballpoint tip. Full-color personalization.