This is the Paranologies Pendulox divinatory visual tool.
Has UV led inside custom quartz crystal pendulum to light up the Glow in the dark writing board.
When pendulum swings it leaves a trail of UV light on the writing board to show a trail of its path it is taking.
Can be used in complete darkness.
Pendulum is attached to an acrylic tower and powered off 4 x AA batteries. Can be used with the tower or you can lift the pendulum up with your hand and hold it in the tower.
Watch the video below for more information.