On the Go is Barbie doll's first-ever track system built 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 Playset storytelling. with a 4-inch size, these Barbie On the Go small dolls are designed for big imaginations. Each doll is compatible with all of the Playsets, tracks, vehicles, ponies and other toys in the line (sold separately, subject to availability). Plus, adorable bobble heads bring their personalities to life in a dynamic, collectible scale. the On the Go small dolls wear bright, colorful clothing: tops with different patterns and decals, pants or shorts and matching shoes or sneakers. Young minds can play out so many fun stories and dream big with these versatile dolls. Collect all of the Barbie On the Go Dolls and Playsets to expand the possibilities because you can be anything with Barbie! Includes 4-inch doll. Each sold separately, subject to availability. Colors and decorations may vary.