A happy duck in a cute tux floats inside a big, clear plastic ball, encouraging teeny-tiny ones to bat at and roll the ball – then crawl and chase after it as they grow. This floaty little friend really keeps the fun rolling, from new-born to toddler. It's just the right size for little hands to grasp, with colorful confetti that swirls around inside to entice baby to shake it up. Where development comes into play fine motor - bat at play, grasping and releasing and shaking the ball all help strengthen baby's fine motor skills. Gross motor - crawling after the water mates ball helps exercise developing gross motor skills.