This 9" metal microscope makes it easy for first discoveries. It has a quality eyepiece for viewing at 300x, 600x, and 1200x magnifications. There is both a built-in light for direct illumination (spare bulb provided) and a mirror for ambient light. The 48-pc. accessory set includes 3 prepared slides, 8 blank slides with labels, a real scalpel and other needed tools and instructions to prepare one's own slides. Sturdy plastic carrying case holds all components. Requires 2 "AA" batteries (not incl.) Ages 8 yrs. +.