These wonderful little bowls were conceived as meditating tools for rituals or meditation sessions. They are not sold as singing bowls because of their very small size and would therefore ask for skills to sing. However, if you are an expert, you can try and use them for that purpose. Bowls are made of Alloy (Copper, Iron, Tin, Lead and Mercury. They come in an entire set of seven corresponding with the seven chakras and their color system. Each bowl is a palm sized 3.25 inch diameter and has etched in gold upon it, the Sanscrit symbol for the chakra’s name. Each bowl comes with a matching pillow cushion and the set includes one glass with silicone tip playing wand. The entire set comes packaged in a delightful pyramid shaped box, with individual chambers for each bowl and cushion and is printed with literature explaining the chakra system