The Flip Car comes in red, blue, and green with a two-sided design. Each racer is friction powered with a pull-back mechanism. No batteries are required. Simply pull the car back, let go, and watch it race off, drive over obstacles, up walls, flip over, and just keep going! Cars are designed with highly durable materials, and all-terrain wheels for climbing, racing and crashing. It is designed to withstand and adapt to different environments making it an ideal toy for kids to take and play with anywhere.