From the Artist:

Rolling along on your wheels feels like flying. The freedom of getting around with only your muscles to move you along is deliciously satisfying. Ride your bike, power off your skateboard or glide along while pushing your skates into the pavement. You are a self-sufficient propelling machine. You can whirl through the world with as much freedom as you allow yourself. Give yourself strength and ease of movement, roll around town. Your set of wheels can be a means of realizing a vision for a sustainable future.