Dental loupes 2.5x 3.0x 3, 5x with different working distance 340mm 420mm 500mm 550mm Light weight, galilean type binocular loupes. Maximum ease of use, combined with multi-functional capabilities. Available in a variety of working distances for your maximum comfort .Multi-coated precision lenses for superb clarity and reduced reflection. Ultra light-weight body and frame for maximum comfort. Fully adjustable viewing angle, pupil distance and flip-up function. Black carrying case - light-weight frame - side shields - flip-up handle - head band - micro-fiber cloth - screwdriver Packing size: length width height : 210x140x80 (mm) Weight (includes loupes , the standard accessory, packing): 230~250 grams