Completeness: metal ball with a diameter of 24 mm - 1 pc., metal balls with a diameter of 16 mm - 2 pcs., metal ball with a diameter of 12 mm - 1 pc., plastic ball with a diameter of 20 mm - 1 pc., magnetic hangers - 2 pcs., operating manual - 1 pc.

Magnetic hangers are used for attachment, to which the balls are magnetized (a metal screw is screwed into the plastic ball for this purpose). The magnet can be moved along the thread, thus changing the length of the pendulum suspension.