A ruyi is like a wand or a stick that is used in some East Asian cultures to represent power and good luck. It looks fancy and is usually made of a material like jade or wood that feels nice to hold. People who hold a ruyi might be important leaders or just want to feel happy and successful. The design of a ruyi can be different and might have special symbols or decorations that are meaningful to the person who owns it. Think of it like a magical stick that brings good vibes and makes you feel powerful and lucky!