The singing bowls also noun as Tibetan singing bowls, Himalayan Bowls, rin gong or Suzu gong in Japan are traditionally made of seven different metals such as Gold, Silver, Copper, Lead, Iron, mercury and Tin. All these metals produce an individual sound, including harmonics. which we use for meditation, yoga and therapies, these seven metals represent nine different planet of our solar system… by which we are always affected… so, when we play the bowls it produce the vibration to produce the sound ‘Om’,which is the sound of universe… which is the first sound of universe according to hindu scripts…by the vibration of ‘Om' Everything was profound… and the sound of every living beings inside the core… so specially the sound of  the bowls help us to calm our mind and destress…and relax,vibration will help us to remove our physical illness and pains…such as knee pain,back pain,headache,migraines and depression…the singing bowls is wonderful tool which many therapists,healers,yogies and meditators they use for spiritual practice like cleansing,activation and balancing  of the Chakra,energy centers inside our body…which start from base of our spinal cord root to the top of  the head crown… there are seven different energy center in our body which are the root chakra (Muladhara), sacral chakra (Swadhisthana), solar plexus chakra(Manipura), heart chakra(Anahatta),throat chakra (Vishuddha).third eye chakra (Angya) and crown chakra (Sahasrara)… so specially there are seven different sound note bowls which are C,D,E,F,G,A,B or Do,Re,Me,Fa,Sol,La,Si, which are are sound of seven chakra,which are useful for cleansing,activation and balancing the seven chakras… each sound represent different chakras… like C sound for the root chakra, D sound for the Sacral Chakra, E sound for the solar plexus chakra,F sound for the heart chakra,G sound for throat chakra, A sound for the third eye Chakra and B sound for the crown chakra… when we strike the Singing bowls with wooden sticks or rubber mallet around it’s rim it produce the vibration and sound, to get better sound and vibration rub the stick little hard at rim and continue playing. When you play a bit it will start to through the stick away so press a bit more and continue your play.