The gong is a round disc with a wide rim turned up at right angles. So that it can be suspended the instrument has two holes in the rim through which twine or wire is passed. For reasons of acoustics, these holes must be drilled in places that do not vibrate.
The highest quality bronze gongs are made in Java.
The gong is suspended on a metal or aluminum stand which is usually on wheels.
Of the different types of gong (a button gong, a gong with the edge turned over, or a flat gong) it is the button gong that has established itself as an orchestral instrument.