This is a vintage Knickerbocker Wrist Racer toy from 1979. Wind up the gold car, pull out the ramp, push the button to set the car rolling. For a small wrist. There are signs of use and wear but overall good condition. Approximate measurements: Wrist band 3" x 2" x 2". Car is about 2" long. Wrist diameter on biggest setting is 2.5".