- Discover the Kanz Fun Rattle Ball, a delightful sensory adventure for your little one! This colorful 9 cm ball isn't just a toy—it's a world of exploration that rattles, rolls, and captivates curious minds. Perfect for developing fine motor skills and hand-eye coordination, this playful companion will keep tiny hands busy and growing imaginations engaged. Watch your child's eyes light up with every shake, roll, and giggle!