Hilltribe people from the north of Thailand. The Long Neck or Karen-Padung hilltribes.

The Padung women are putting brass rings around their necks. This distorts the growth of their collarbones and make them look as if they have long necks - which they don't. This row of brass rings do not actually stretch their necks but in fact squash the vertebra and collar bones. A woman generally has about twenty or more rings around her neck. This neck ring adornment is started when the girls are 5 or 6 years old.
The rings on the arms and the legs are not quite as prominent as those on the neck simply because the neck rings are so pronounced. However, these rings are just as important. The rings on the arms are worn on the forearm from the wrist to the elbow. Those on the legs are worn from the ankles to the knees.