Rantai Tulang Naga means dragon bone chain in Bahasa Indonesia. Made on different sizes, thickness and shapes, these chains are pathognomonic from the archipelago and entirely handmade. Each link is a combination of rings of specific sizes and quantity according to the particular pattern pursued. Some villages are dedicated exclusively to their production since long time ago. Kids learn THE SKILL FROM YOUNG AGE in their homes, while helping the elders to plate the chains and sometimes also in schools.