Punggidae is a stone measuring instrument used to detect the speed of wind and the direction it is blowing. Punggidae is decorated with scroll designs and believed to have been constructed sometime in the 18th century.
To use the instrument, a pole was inserted into a hole at the top of the stone. A piece of cloth was attached to the end of the pole. When the wind picked up, the piece of cloth would wave in the air. This would indicate the wind speed and direction.