Kettler Air Happy w/ Push-bar Trike: -Quick-Adjust™ frame with telescoping multiple frame adjustments. -Parental Control™ steering lock system locks handlebars into place for parental guidance and steering with pushbar. -Auto-Freewheel™ allows children to rest their feet on the pedals while parents guide them with the optional pushbar. -Komfy-Ride™ air tires for superior performance, road gripping traction and responsive maneuvering. -Safety powder coated handbrake allows trike to stop on a dime.