Worlds smallest solar-powered racer!This cool little racer needs no batteries， just power from the sun! This is a fun and educational way to learn about solar power.The solar cell used in the solar racer is a small version of the solar panels used on space satellites and space stations.The solar cell generates electricity from sunshine that drives a miniature motor that turns the wheels.These little cars can really move. Race against your friends it is great fun for all ages. My teenagers love them!The mini racers are small enough to go anywhere with a nice little carrying container.We even race them inside using small mag flashlights.ace them inside using small mag flashlights. Mini solar CarPackage ContentSize:33mm x 22mm x 14mm