This is a really cool necklace with invisible fishing line chain which makes the turquoise beads look like they are just floating on your neck. It's a choker 15 1/2" but an extender could easily be put on. It was sold to me as real turquoise and has a sterling clasp. Extenders are easily purchased online i can add a temporarynon sterling extender if youd like message me. The seller looked so cute in this I had to have it but I've got too many wrinkles on my neck at this age and it did not look as good on me lol. Eye catcher. I did check the stones with acetone and nothing came off it is stone I just can't test unfortunately. Artisal made. Such a unique piece! Happy to bundle. I use recycled packing material unless otherwise requested.