The Fisher-Price Rock-A-Stack Rainbow Stacking Rings is a colorful and engaging baby toy designed to help develop various skills such as hand-eye coordination, problem-solving, memory, motor skills, and creativity. With its unisex design and puzzle theme, it is suitable for babies aged 6 months and above, providing a fun and interactive play experience for little ones. This stacking toy from Fisher-Price is a great way to engage and stimulate babies, encouraging them to explore and develop essential cognitive and motor skills.