It consists of a flat, round metal sound body that is filled with a little water. A pipe rises in the middle, which also serves as a sound hole, handle and filling opening for the water. Many different thin and long sounding sticks are soldered to the outside of the edge, which can be made to sound with a bow, a mallet or with your fingers. By pivoting the instrument, the water flows back and forth in the sound body. Depending on how much the ground is covered with water, the resonance changes. This creates sounds that are reminiscent of whale songs.
Chasing is a metalworking technique used to shape or improve the details of a surface pattern and create the desired level of relief. This process is completed from the front by using various tools to raise, depress, or move the metal without taking away any material from the surface (but note that "chasing" sometimes refers to the removal of excess metal from castings).Chasing involves hammering with small, blunt tools to produce a low-relief design, in contrast to embossing or repoussé, which are worked from the back to produce a higher relief. Flat chasing, a particular form of chasing, was widely used to decorate silver in Europe during the early 18th century and the US during the latter part of the century.