A damaru is a small two-headed drum, used in Hinduism and Tibetan Buddhism. In Hinduism, the damaru is known as the instrument of the deity Shiva, associated with Tantric traditions. It is said to be created by Shiva to produce spiritual sounds by which the whole universe has been created and regulated. In Tibetan Buddhism, the damaru is used as an instrument in meditation practices.
A Tibetan damaru
Damaru
Two Damaru-shaped coins from the Gangetic Valley
Drum damaru – the Asia and Pacific Museum in Warsaw
Shiva, also known as Mahadeva or Hara, is one of the principal deities of Hinduism. He is the Supreme Being in Shaivism, one of the major traditions within Hinduism.
Statue of Shiva, Murudeshwara Temple, Karnataka
An ancient sculpture of Shiva at the Elephanta Caves, Maharashtra. 6th century CE
The Pashupati seal discovered during excavation of the Indus Valley archaeological site of Mohenjo-Daro and showing a possible representation of a "yogi" or "proto-Shiva" figure as Paśupati (Lord of the Animals" c. 2350–2000 BCE
Three-headed Shiva, Gandhara, 2nd century AD