| Sand Pendulum
Create one-of-a-kind intricate designs with the captivating Sand Pendulum. Each swing of the pendulum creates patterns in the sand which are both fascinating and very calming. Simply get the pendulum arm moving and watch as gravity creates ever changing geometric patterns, from circles to ovals, from rectangles to squares. And no batteries are required, as the Sand Pendulum operates on a simple scientific principle as it converts potential energy in to kinetic energy. A great gift, including everything you need to get started.
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Computers & Office
