Observation head : Binocular observation head inclined at 45°, rotatable through 360°, interpupilary distance adjustment ring 54-74mm. Main body : All part die cast to provide long life & good mechanical strength. Coaxial focusing control with ball bearing guide way & large knobs. Eyepiece : 10x or 15x Objectives : Objectives 4x, 10x, 45x & 100x oil immersion Nosepiece : Quadruple nosepiece revolves on ball bearing. Mechanical stage : Large size double plate type x-y mechanical stage of size 142140mm with fine vernier graduation. Condenser : Abbe condenser n. A. 1. 25 having a spherical lens, adjustable iris diaphragm. Illumination : Built in illumination system with 6v-20w halogen bulb & plano concave mirror attachment suitable for 220v,50hz ac supply Packing : Nicely packed in box.