S These bowls are made by hand on a Full Moon evening of each month by enhancing the subtle moon energy for healing vibrations. These singing bowls are chosen carefully by sound testing to ensure their healing properties. These exclusive healing masterpieces are carefully made for long lasting and powerful sounds.Traditionally, the bowls were made of seven sacred metals, corresponding to the seven planets. The highest lamas used these bowls as ritual offerings to their gods and deities, and some believe the highest lamas used these bowls for rituals to travel to another level of consciousness, but it was forbidden to talk about these bowls, even within monasteries itself. Height : 3.8/9.5 cm. 1.2 kilograms ± 15 grams. Diameter: 4.5 cm/1.8'. Weight: 223 grams ± 5 grams. Cushion size(inch) :7/18 cm (length).