With A Bead In The Center Of The Rattle Ball, A Baby Ball And A Button That Spins The Thread. Little Ones Can Make Noises From This Rattle That Will Keep Their Attention For A Long Time. It Develops Fine Motor And Hand-Eye Skills, Coordination, Bright Colors And Wobbly And Moving Parts. Including An Easy-Grip Design All This Encourages Babies To Hold Them In Their Hands And Play With Them For Long Periods Of Time.