Get a Grip on Playtime. ™ Nest, stack, and roll! This colorful, stackable toys quickly transforms into baby's favorite toy with three ways to play! Introduce baby to stacking the balls, nesting them within one another, or get the fun on a roll and toss them for chasing fun! The soft, flexible Oball™ material features ample finger holes to make it a snap for baby to grasp and roll! Encourages baby’s fine motor skills. When things get a little messy, simply wipe baby’s favorite ball toy clean. Recommended for newborns and older.