On the Go is Barbie® doll's first-ever track system to inspire new ways to play! Barbie® doll and her friends really move with motorized ponies, cars and scooters -- and they stay on track for play set storytelling. Barbie™ On the Go small dolls and pony pairs can really ride all on their own! Just push the button on each pony's chest to see it walk. The motorized legs let it roam on any flat surface -- as well as on play sets and tracks within the line (sold separately, subject to availability). Barbie™ On the Go dolls fit easily into the saddle. Flexible hips and legs let them sit, and a clip on each pony holds a doll in place. Plus, bobble heads on the dolls bring their personalities to life. Each small doll wears a unique riding outfit with a removable helmet that matches the saddle and bit on her pony. Colors are bright with trendy patterns and decals on the dolls' tops. Designed in 4-inch scale, the On the Go small dolls are ready for big imaginations. Young minds can play out so many stories with these dolls and walking ponies. Collect all of the Barbie™ On the Go toys and accessories to expand the possibilities because you can be anything with Barbie® (sold separately, subject to availability). Includes 4-inch doll with removable helmet and battery-powered pony with removable bridle. Each sold separately, subject to availability. Colors and decorations may vary.