This stunning handmade necklace is made of aluminum, yes colored aluminum wire which was hand twisted by an artist to hold the glass irridescent crystal then then finished with colored handwoven thread so this makes it lighter weight n it will never lose its beautiful bright brilliant colors. when I 1st saw this twisted colored aluminum at an art fair I was in awh at all the pieces they had crafted n amazed that they used colored aluminum wire what a talent. These stones change color with every movement n whatever u wear it's just a gorgeous stunner. Length is adjustable has Extension chain attached . This is just an absolute stunner that will never tarnish fade or lose its beauty it's a definite keeper! Questions? Leave a comment below!