Product Name: Educational Student Biological Microscope with Ce Model NO.: M-107BN-B Principle of Optics: Polarizing Microscope Principle: Optics Usage: Teaching Shape: Single-lens Kind of Light Source: Ordinary Light Stereoscopic Effect: Stereoscopic Effect Mobility: Desktop Number of Cylinder: Binoculars Type: Biological Trademark: LUMENLAB Transport Package: Color Box + Standard Export Carton Specification: FCC, CE, RoHS Origin: China Product Description Specification:1.Sliding Binocular Head Inclined at 45°2.Wide Field Eyepiece WF10X(WF16X for choice)3.Achromatic Objectives 4X,10X,40X(S),100X(S,Oil)4.Double Layer Mechanical Stage Size 140x140mm,Moving Range 75X45mm5.Coaxial Coarse and Fine Adjustment,Focusing Range 30mm,Focusing Interval 0.002mm6.Abbe NA=1.25 with lris Diaphragm & Filter7.Halogen Lamp 220V/6V20W or 110V/6v20W8.styrofoam case(wooden case is option)