This set has two different balls for baby to grasp, roll and hold. One is a ball-within-a-ball that chimes with every move. The sturdy plastic outer ball has generous cutouts to make gripping easy for little hands. Rattling and rolling inside it is a smaller inner ball with a bold polka dot pattern on one side and mirror on the other. A larger squishy plush ball rounds out the pair. It has bold, solid colored stripes in a velvety fabric interspersed with cheery polka-dot stripes in silky fabric. All are in high-contrast, bright colors to stimulate baby’s vision. The ball has an inner layer of crinkle fabric to make crunchy sounds when baby grabs it. It chimes when rolled, thrown or shaken. Launch date: July 2009.