Features:

1) Secured in its oak stand, the all metal pendulum converts kinetic energy intopotential energy

2) The extremely fine sand (included) provides minimal friction allowing the pendulumto swing for extended periods of time

3) As the pendulum swings, it gently draws interesting patterns on the sand.

4) The patterns get bigger and smaller repeatedly as the arc of the pendulum changes

5) It can take you out of pressure.