About this 3D model

Casting begging cups is a way for people to communicate and ask for guidance from the spirits. The material of the begging cups is wood or bamboo, shaped like a crescent moon by artisans. There are two pieces, each with an outer convex and inner flat surface. The convex surface of the begging cup is called "yin", and the flat surface is called "yang". If one is yin and the other is yang, it is called " Holy Grail ." — From Baidu Encyclopedia