Brilliant Basics Stack amp Roll Cups have so many ways to play. Baby can easily stack these 10 rounded cups vertically or flip them over to nest. Molded in details expose baby to numbers and colors stack up all the cups and count to 10. Similar sized cups can be put together to form balls and even those can be stacked. The set comes with a jingle ball to shake on its own place inside one of the balls baby makes or even be placed on top of the stacked up cups. Baby can even make abstract shapes by putting cups together. Baby can learn so much through basic play and these stackable nestable fit-together-and-roll-around cups offer endless versatility for lots of enriching discoveries. Features: Includes 10 colorful cups to grasp stack or nest with grooved surfaces for a snug fit and easy stacking. Different colors sizes and numbers help build early identification skills. A smiling jingle ball nests inside any cup or fits on top of a whole stack Recommended Age: 6 Months.