... manufacturer 2.With ISO,CE 3.Cheap price Round Stage Monocular Biological Student Microscope XSP-L101 Configuration:Achromatic Objectives :5X,10X ... ,45X(S)Eyepiece:H5X,H10X,H15XViewing head:Monocular HeadNosepiece: TripleStage: Round Stage+Slide ClipsFocusing:Separate Coarse And Fine ... 1.4mm-1.8mmIIIumination,Condenser : Disc Diaphragm XSP-L101 Monocular Biological Student Microscope