Beaten by hand from a bronze of seven metals by a family workshop that has made bowls for monasteries in the Himalayan foothills for three generations. Each bowl is tuned by ear, not by machine, so no two hold quite the same note - the hammer marks on the outside are how you can tell.
Rim it slowly with the felt-wrapped sal-wood striker for a long, rising hum, or tap the side to mark the start and end of a sitting. It comes on a round cotton cushion that keeps it from buzzing against the floor. The next batch leaves the workshop in November.