It so much fun to do something really wacky! The Wacky Wigglers Gears Building Toy is an award winning electronic toy and creative building set at the same time. Your child can create their own one-of-a-kind wiggling and jiggling motorized creature with this 130-pieces colorful building kit by Learning Resources' Gears! Gears! Gears! series. The wacky building toy set from Educational Toys Planet includes springs, gears, chomping teeth, flashing lights, eye balls that glow in the dark, fiber optics and more. The enclosed color-coded instructions provide 4 model building ideas. This creative construction set is compatible with any other Gears! Gears! Gears! building toys. Wacky Wigglers Gears Building Toy requires 3 AA batteries (not included).