Optical Illusions Mini-Lab. Get an eyeful of visual wonders as you explore the eye-popping world of optical illusions. Build an altered perspective room that changes the size of anything placed inside of it! Use a battery operated spinning mechanism to power a zoetrope-the original moving picture machine. Whirl black and white shapes into color. Make ordinary objects pulsate. And lots more! Requires two size "AA" batteries, not included.

Ages 8 years and up. WARNING! Choking Hazard - Small parts. Not for children under 3 years.