These binocular loupes are designed for precision work across various disciplines in clinical and industrial settings. Widely used for ENT and dental applications, these loupes can also prove indispensable in various repair fields such as watch and jewelry or electronics. Loupes are available with magnifications from 2.5X to 3.5X, and fixed working distances from 340mm to 500mm. Specifications: Model number: JH25420 Perfect for doctor, dental and veterinary clinics, repair shops, and hobbies Adjustable foam bolstered headband, for long time comfortable wearing Multi-layer-coated premium quality optical glass elements 5-way adjustment of loupes: flip up and down, slide up and down, and slide left and right of each loupe independently Magnification: 2.5X Long working distance: 16-1/2" (420mm) Large field of view: 3-15/16" (100mm) Large depth of field: 4" (102mm) Net weight: only 182g (6.4 oz) with headband One year warranty Definitions: Working distance: the distance between your eyes (not the loupes) and the spot that the object is in focus. Field of view: the diameter of the area that you may see in focus. Depth of field: the range of depth that objects can be focused on, in other words, from the nearest focused section to the farthest focusted section. Note: the actual data may be slightly different from individuals with different visions. Packing List: Binocular Loupes on the headband High quality cleaning cloth Screw driver for tension adjustment Spare screws, washers and nuts User's guide Aluminum case
