Fisher-Price Silly Speedsters Rock 'n Roll Wagon Two modes of play grow with baby and help develop gross motor skills Sit & Play mode features lots of busy activities: bat-at-rollerball, spinning and clicking steering wheel, peek-a-boo flip page, and clacker-bead flag Stand & Walk mode encourages baby to walk with rewarding music and cars that rock back and forth as wagon is pulled long Flip down the tailgate and press the lever to activate great sound effects and send cars racing out the back for crawl & chase fun Includes two Friendly Racers vehicles with rollerball bottoms and rattle bead sounds