The Neitz Penlight Transilluminator NTZ-MS-II is a portable instrument which easily fits in a pocket. The body of this penlight-sized pocket transilluminator is exactly the same as the Medicospot Penlight. The finely finished metal body of this penlight pocket transilluminator measures 8.27 inch long x 0.71 inch diameter. The Neitz Pocket Transilluminator is supplied with two AAA batteries and a spare light bulb (L-6). A unique instrument, of high quality, the Neitz pocket penlight transilluminator makes a great gift.