Trying a different supplier so as to offer you more variety and uniqueness.. These are from Cadi, my kaftan wholesaler who is here in Adelaide, all products have been threaded in Bali, Indonesia.
Threaded onto a single yellow waxed cord are many irregular shaped bone pieces, these are spaced with small yellow wood beads, all hand threaded through the middle and knotted so they will sit flat and will not move. Bone is an unusual medium, but I have seen it before in hand crafted items out of Bali, it's a talking point for sure.
There is no adjustment or closure, just pop over your head, it is long enough to wrap twice, fully extended the overall approximate measurement is 132cm.