The Gearbox And Joint Mechanism You Construct Comes To Life By Transforming An Electrical Current Into Kinetic Energy In A Cute Googly Eyed Snail With Two Different Stride Lengths.Create The Snail Robot With Friends, Or For A Fun And Engaging Family Night Activity. The Life-Like Movement Of The Snail, Which Measures 18 Cm Long When Assembled, Will Keep You All Entertained.