6.0x Magnification Dental Loupes, Prismatic Keplerian Style Nickel Alloy Frame, 45mm Field of View+ 25mm Depth of Field Loupe+ 420mm Working Distance, Flip-Up Flexible Optical Glass Loupe 6.0x Ultimately highmagnification power withadjustable nose bridge accommodates any pupil distance Fully adjustable viewing angle, allows converge and declinate angle for perfect optical alignment Provides much more power and perfect for detailed operations such as root canals Ultra Light Keplerian Prism styleNickel Alloy FrameMedical Binocular Flip-UpwithadjustableInter-pupillary Distance 25mm Depth of Field ,45mm Field of View and420mmWorking Distance Up to 45 degrees Working Angle