This is a demo store. No orders will be fulfilled.
Inside the Rover's clockwork mechanism is a coiled spring that winds more tightly as you turn the handle; this stores energy in the spring (potential energy). When you let go, the spring uncoils, releasing the energy again and making the wheels turn (kinetic energy). The wheels grip the surface because the magnet pulls the Fridge Rover firmly against the fridge.
A magnet and wind-up vehicle in one gadget, this toy ensures that your refrigerator door stays interesting.
