Objective：Grouped From Any Two Objectives of 1X，2X，3X and 4X，Working Distance：90mm；
Wide Field Plane-Scope Eyepiece：WF10X，（Optional： WF15X ，WF20X）
Total Magnification：10X-20X，or 10X-30X，or 10X-40X，or or 20X-40X
Articulated Free Binocular Head，Interpupillary Distance：55-75mm；
45º Inclined，360º Rotatable
Natural Light For Illuminating Gathered By Ø90mm Black-white Reversible Stage Plate
Rack and Pinion Coarse Focusing Mechanism With Slip Clutch and Tension Adjustment
Net Weight/Set：3kg；
Package：2 Sets/Carton44X29X39cm；
Gross Weight/Carton：9kg
