This mudra can also be called "Debate" or "Discussion". In this gesture, Buddha uses his right hand. The end of his thumb and index fingers are joined to form a circle (which in many cultures means "OK").
All the other fingers are extended upwards. This is the mystic mudra of Taras and Bodhisattvas, often used while teaching and discussing the Buddha's lessons.
Handmade by a local craftsman in Ubud region, Bali.