Saashi 2-in-1 Rechargeable Medical Penlight with Pupil Gauge (1-5 Pack)Feature: Multipurpose Medical Penlight Ideal for nurses, doctors, students, and medical professionals this penlight LED flashlight features dual beam lighting with white or yellow warm colors to help you see with improved clarity. Pupil gauge on the side is also convenience to pinpoint lens directly illuminates eyes, ears and throat. Slim, Compact, and Portable EMS penlight with metal clip won't slip from your pocket, convenient for long time carrying