VTech Move and Crawl Ball Educational Rolling Infant Baby Interactive Toy Developmental Benefits: Language Development ? Press the animals to learn names, colors and numbers. Sensory Stimulation ? Bright colors and five flashing lights hold your baby?s attention. Motor Skills ? Spin, slide, twist or press the buttons to build fine motor skills. Encourage Your Baby to Crawl and Learn! Watch as the ball wobbles and rolls on its own to encourage crawling, or press the animal buttons to hear over 45 songs, melodies, sounds and phrases. With flashing lights and animals that twist, spin and talk, your baby will also develop fine motor skills while having a blast!