In order to produce a sound, the bell has a clapper, metal or wood. It is an object formerly used to find out his beasts to pasture, to call someone, but also an instrument of music, played or worn, added to clothing for example.
Made by artisans tibetans, in Nepal, these cymbals have to name Tingsha, adorned with signs auspicious in buddhism they allow, among other things, purify the parts of your home by making them vibrate.
Made craft they may be a little different from the photo.
With the 8 auspicious symbols buddhist bas-relief.