1) Paired Sliding Objectives 1X, or 2X, or 3X, or 4X for Selecting,

2) Working Distance:1X-55mm, 2X-81mm, 3X-61mm, 4X-57mm

3) Wide Field Plane-Scope Eyepiece: WF10X, WF15X(Optional)

4) Total Magnification: 10X, or 20X, or 30X, or 40X (15X, or 30X, or 45X, or 60X)

5) Articulated Free Binocular Head, Interpupillary Distance: 55-75mm;

6) Illumination: with 60mm Black and White Glass Stage Plate

7) Rack and Pinion Coarse Focusing Mechanism With Slip Clutch and Tension Adjustment

8) Net Weight/Set: 1.3kg; 

9) Gross Weight/Carton: 7kg

Outer package: 4 Sets/Carton Carton size: 61X35X36cm