Why do Kayan long neck women wear their rings?

Kayan ladies playing Chin Lone (cane ball). They are very good! (y) ▬▬▬▬▬ The Kayan are a sub-group of Red Karen (Karenni people), Tibeto-Burman ethnic minority of Myanmar (Burma). Padaung (Yan Pa Doung) is a Shan term for the Kayan Lahwi (the group in which women wear the brass neck coils). The Kayan residents in Mae Hong Son Province in Northern Thailand refer to themselves as Kayan and object to being called Padaung. In the late 1980s and early 1990s due to conflict with the military regime i