Introduction to decorations: Among the decorations unearthed from the Karuo site, there are beads, rings, bracelets, etc. made of stones, jade, bones, etc., which shows that people at that time had developed the concept of beauty and knew how to dress themselves up. There are also jade articles and seashells, which should have been exchanged by neighboring people, indicating that although residents or ethnic groups in Tibet and other regions have had normal exchanges since ancient times.