The Fisher-Price Sloth Play Pillow with Vibration supports babies while playing in the tummy time position. The large sloth makes crinkly sounds, and the pillow plays music for up to 10 minutes and generates vibrations to keep the baby engaged. Two removable activity toys, including rattling rings and BPA-free teething rings, provide even more fun. By propping up while playing in tummy time on the pillow, the neck and core muscles are strengthened.