Microscope Good Quality; Paired Sliding Objectives 1X,or 2X,or 3X, or4X for Selecting,Working Distance:1X-55mm, 2X-81mm,3X-61m Paired Sliding Objectives 1X,or 2X,or 3X, or4X for Selecting,Working Distance:1X-55mm, 2X-81mm,3X-61mm,4X-57mm. Wide Field Plane-Scope Eyepiece:WF10X, WF15X(Optical) Total Magnification:10X, or 20X,or 30X, or 40X(15X, or 30X, or 45X, or 60X) Articulated Free Binocular ...