Who doesn't want to build their own race car? This hands on science kit teaches kids about potential and kinetic energy through a rubber band powered race car. We love how easily the piece snap together (that means kids can build it themselves without help from mom and dad!0 and how durable the race car is (we ran ours into every wall in the house and it's still going). Build it once but race it again and again. Pull the race car back to load the rubber band with potential energy and then send it racing! How fast can you make it go? Each kit comes with a sticker sheet so you can personalize your car and race against others!