Happy Puzzle Company The Amazing Clock Kit - Construct Your Own Colorful Real Working Clock. Educational Toy That Teaches How Clocks Work, and Doubles As an Actual Wind-up

Description

Build Your Own Wind Up Clock Both sides of the wind up clock are transparent, meaning that the workings of the clock are completely visible. This brilliant discovery kit is designed to give children aged from 5 to 15 an understanding of how a clock actually works. Children will be able to see why the different cogs and springs rotate and how they cause the pendulum to swing, turn the hands of the clock and make the bell chime too