Microscope Good Quality; Paired Sliding Objectives 1X,or 2X,or 3X, ... 40X(15X, or 30X, or 45X, or 60X) Articulated Free Binocular Head, Interpupillary Distance:55-75mm,45..inclined. Illumination: Top/Bottom ... Package:4Sets/ctn61*35*36cm G.W:10.5KG Stereo-Microscope