VERTEBRAE CHAIN -
Chain mimicking links of the spine.
Rests elegantly across the collar bone, clasps in the back.
Available in thick 14 guage rings or more delicate 16 gauge rings.
 
A few are available in brass! These are made with 16 guage only. 

*All parts are stainless steel. For adjustable parts please take care to note the smallest measurement for requested areas - adjustments will scale up in size from that point.