GeoSafari® Jr. My First Microscope has been designed especially for preschoolers; everything about My First Microscope is designed for little ones. The wide, fixed tray holds both flat and 3-D objects so that kids can examine anything! Rotate the simple-focus, kid-sized knob to bring objects into view, then turn on the LED light so that the details shine so bright! The XL eyepieces allow children to view the objects with both eyes-no squinting or having to close one of their eyes. Kids will love being able to explore the details of everything like shells, flowers, a toy, or even a postage stamp. Product measures 6 x 5.75 x 7 inches. Requires 3 AAA batteries (not included). Recommended for ages three and up.