HHIP 40X Shop Microscope. Wide field eyepiece with direct reading reticle - no calibration required. Eyepiece turns to permit sharp focus of reticle scale. Penlight illuminator in a swivel mount. Requires 2 AAA batteries which are not included. Jack and pinion focusing with dual focusing knobs. Cast aluminum structure. Height is 9". Reticle is 0-18mm/.02mm X 90.