This Crawl and Learn Bright Lights Ball by Vtech features a built-in motor that moves the ball by itself and is packed with sing-alongs and melodies encouraging crawling in small children.This ball has flashing lights, 12 melodies and 4 sing along songs to help promote speaking, learning numbers 1 to 5 as well as being an in introduction to animals and colours. Large animal buttons can slide, press and twist for helping early motor skill development and providing plenty of entertainment!. 12 melodies and 4 sing-alongs. Self-moving ball with built-in motor. Buttons that press, slide and twist encourage motor skill development. Suitable for children 6-36 months. Approximate dimensions (mm) H 217 W 202 D 180