If you are not satisfied meet in any regards, please have no hesitation to contact us ,We will try our best to resove it. II, Names of the parts and accessories : Base, fixing block, sliding stand, pole , hand clamp, incident illuminator, Eyepieces, diopter adjustment ring, prism housing, objective, power switch FEATURES 1.Sharp stereo erect image over a wide field of view 2.The left ocular-tube with diopter adjustment ±5dp.The interpupillary distance is between 55－75mm. 3.V-shape inserted style objective with locked-in device ensures easy replacement. 4.Power supply /60Hz or /50Hz. 5.Optional accessories:Eyepiece WF10× or WF20× Objective: 1X 6.Illumination: Incandescent lamp 12V10W/6V/6W and High brightness LED lamp Compatible with selection. Package incluede: 1 x Binocular Microscope Set 2 x WF10X or WF20X 1 x Accessories Cotton bag