Sterling Silver Genuine BEER QUARTZ & TROCA SHELL Heishi Bracelet or Anklet.  

They are 6mm size RARE SOUTH SEA OYSTER Shell beads with silver plated bead spacer beads and white Troca Shell beads

It has a HOOK clasp of 925 sterling silver and the adjustable chain is sterling as well.

It measures 7.5" to 9.5" and could also be worn as an anklet if so desired.

Thanks for looking!