This 15" Awesome Old B Chakra Tibetan Singing Bowl is made from seven metals, including copper and silver. This singing bowl was hammered by hand. This Tibetan Buddhist hand-hammered singing bowl was handmade in Nepal. Classic bronze patina darker speckling and swirling. This bowl is literally covered in authentic hand hammered markings. This PREMIUM bowl sings VERY easily. Great sustain will last and last. Full Middle range tone with a sweet constant high hum. VERY distinct charm.This singing bowl comes with a striker (aka mallet, puja), and the singing bowl cushion shown here is available in the singing bowl accessories section. *Please note that the measurements are a close approximation may be of a slightly different. * Weight of singing bowl : 6000gms. * Width of singing bowl(Diameter) : 15” inch (40cm). * Height of singing bowl : 7” inch (17.5cm). * Thickness of singing bowl : 7mm. * Material of singing bowl : Brass and 7 auspicious metals. * Items of this listing : Bowl, striker and cushion. * Total weight of all items : 7600gms (272 ounce). This "Seven Chakra (Connection with Spirit, Wisdom and Inspiration) Crown i.e. B note/toned" singing bowl is made of mainly brass. There are also mixed small amount of seven auspicious metals (gold, silver, mercury, copper, iron, tin and lead) in this hand-hammered bowl. These metals represent heavenly bodies as follows: Gold the Sun, Silver the Moon, Mercury the Mercury, Copper the Venus, Iron the Mars, Tin the Jupiter, and Lead for Saturn. From the very first rotation of striker around rim of the bowl, this bowl starts producing sound/vibration. This bowl keeps vibrating for minutes even after stopping striker to rotate around bowl’s rim. It produces such a relaxing sound that it will hold your attention. This bowl is used for relaxation of mind by producing vibrating sound before yoga practices.