Standard set complete with built-in 6V 20W halogen light illuminator, quadruple ball bearing nosepiece, focusing by co-axial coarse and fine focusing controls, high resolution long barrel achromatic objectives 4x, 10x (spring) and 100x (spring, oil immersion), with an inclined monocular observation tube rotatable through 360 degree fitted with fungus resistant, anti-reflection coated Prism, compensating widefield eyepiece WF 10x (N. F. 18) and with right hand co-axial low drive mechanical stage, substage abbe condenser 1.25 N. A. With iris diaphragm focusable with rack and pinion (Complete set in thermocole packing) Product Specification:- Body Style : Aluminium die-cast body with all critical movements based on ball bearing & wire guides thereby ensuring smooth & precise manipulation Model : SKYIM Voltage : 6 V Wattage : 20 W