If you're thinking this is a toy, look closer. This amazing little machine magnifies from 50x to 600x. It's solid, die-cast metal with glass components, and features rack-and-pinion focusing technology. It's a power tool advanced enough for classroom instruction, a perfect entry into the fascination of science. Comes with an incredible array of accessories, from slides to scalpel, from Petri dish to spatula—48 pieces in all. Requires 2 AA batteries, not included. Recommended for kids ages 8-12. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.