The Primacare disposable diagnostic penlight is easy to use and affordable. The pre-focused pinpoint lens directly illuminates eyes, ears and throat. Activation is made simple by depressing the pocket clip. Product Features: Lightweight molded plastic body. Imprinted pupil gauge helps determine pupil size at a glance. Sealed concentric beam. Disposable. Dimensions: 5" length x ½" diameter. The product referenced on this detail page is sold be 6/Pack.