Large Seven Metal Tibetan Singing Bowl Set With Striker and Pillow by Tibetan Singing Bowls. $64.95. 4.75" diameter bowl with puja stick, pillow, and information card.A singing bowl is a type of bell shaped as a bowl. They come in many shapes and sizes, and are made using seven metals, which are copper, tin, lead, iron, zinc, silver, and gold. Singing bowls were traditionally made throughout Asia. The tradition continues today in Nepal, India, China, and Japan.