The box detaches from the circles, and can be opened. The inside is decorated with shakudo sawed out pattern, the same as on the outside, to balance it.
The circles spin in different directions.
It's quite big, the whole thing is about 10 cm, and the box is 3,6 cm.
The pattern is actually the hinges on the box. All of it is hand made from silver wire and sheet, hand sawed and hammered. It's made of 925 sterling silver, and a bit of shakudo, a gold and copper alloy.
This was 65 hours of work over 1,5 week.
The box is wet in the picture of the inside, that's water drops, not solder mess...