The bright colors, bold patterns and easy-to-grasp bumps make this ball a must-have. The ball's high-contrast colors help baby focus and enhance vision. The soft rattling sounds of the trapped beads create neural connections in babies' brains from birth to 3 years old. Thick bumps on the ball encourage reaching, grasping and moving from one hand to the other, developing baby's motor skills. The different materials encourage the development of baby's tactile sensitivity and teach baby about variety.