This little gravity-defying Fridge Rover will amaze you as it creeps across any magnetic surface when wound up, even vertical ones! Try it on your fridge - it will grip the fridge and go up and down, paying no mind to the floor. Simple and fun, the Fridge Rover is a great little gadget both to play with and to teach the science of magnetism. The Fridge Rover is recommended for ages 8 and up.