Swing handlebar from side to side on any hard, smooth surface to propel yourself forward. No batteries or pedals. Use indoors or out. Fly around obstacle courses or roar through relay races in gyms or black tops. High quality parts include heavy-duty steel handlebars and injection-molded seat. Non-marring skate wheels won’t scratch floors, crack, or wear out like plastic. Completely portable for on-the-go play dates. Meets all safety standards worldwide. This model is designed for home use and is not warranted for use in institutional settings (like schools, daycares, etc.). Weight limit is 150 lbs. For institutional use, we recommend the W14519 Roller Racer.