What is rolly poly toy?

A rolly poly toy, also known as a tilting doll or tumbler toy, is a type of toy that is designed to always return to an upright position after being pushed or knocked over. It typically has a weighted bottom and a rounded top, and is made from materials such as plastic or wood. Rolly poly toys have been popular since the 19th century and are often used as a toy for infants and young children, as they are safe and easy to handle. They can also be used as a stress reliever or desk toy for adults.