AmScope PM240B Binocular Common Main Objective Stereo Zoom Microscope, WH10x Eyepieces, 8X-80X Magnification, 0.8X-8X Zoom Objective, Pillar Stand, 100V-240V  Professional stereo microscope with boom stand has long working distance to enable users to perform work or manipulate large items, including gem and jewelry applicationsBinocular viewing head with pair of 10x extreme-widefield eyepieces, adjustable interpupillary distance, fixed20-degree vertical inclination to reduce eye and..