The Fisher Price Stack and Roll Numbered 1-10 Nesting Cups is a colorful stacking toy designed for babies aged 12-18 months. It helps develop hand-eye coordination, problem-solving skills, and motor skills. With numbered cups featuring a multicolor design, this toy is perfect for introducing numbers and letters to young children in a fun and engaging way. As an unisex baby toy, it provides an interactive and educational play experience for little ones to enjoy.