The Chicco 123 Activity Walker quickly and easily transforms from a
walker (6-9 months) to a push-behind (9-18 months) and ultimately to a
ride-on vehicle (18+ months). The walker features an electronic play
tray with colorful lights, fun sound effects and manual activities and
can be removed from the walker for use on the floor as a stand-alone
toy. Two height adjustments and adjustable handles make it easy to find a
great fit for your child. features:7 safety stoppers, 4 wheels with anti sleep rubber , 2 height adjustment, 2AA batteries required.