Keep your baby busy as can be with this set of eight colorful cups! Whether stacking them up high or nesting them all together, the Fisher-Price Stacking Cups are super fun for your little one. Where development comes into play Fine Motor: Little hands will be busy grasping, stacking, and nesting the cups, helping to develop dexterity and hand-eye coordination. Problem-Solving Skills: Toddlers can practice trial & error as they figure out how the colorful cups stack and nest together. Self Identity: Your little stacker will develop a sense of independence and confidence as they discover how to stack and nest the cups all on their own!