Train running Sound Spirograph ( Genuine+ Ecoh used voice)

Spirograph is a geometric drawing toy that allows users to create intricate and beautiful designs by combining and rotating gears, wheels, and rings. It consists of a set of plastic gears and wheels with teeth that interlock and guide a pen to create complex mathematical curves known as hypotrochoids and epitrochoids. Spirograph sets typically include a variety of gear sizes and colored pens, providing endless possibilities for creating mesmerizing patterns. It's both a fun artistic tool and a way to explore mathematical concepts like symmetry and geometry.