What rolls, bounces, stretches, and can be chewed on by teething babies? The Ogosport Bolli Flexible Discovery Ball, of course! This fun, oddly-shaped open ball can be played with like a ball, stretched like an exercise band for muscle exercises and even chewed on by tender gums and baby teeth. Numerous fun colors to capture your baby's or toddler's attention are available. Because of its "open" design, babies can easily grasp it, too.