This piece is made of Volcanic lava in size 8mm.
Other stone used Is Moonstone in size 8mm.
Silver embellishments are stainless steel, therefore they will not tarnish.
Bracelet is adjustable in size. It has adjustable macrame knot that makes the cord slide trough and expand in size.
Material of the cord is Black waxed nylon. Soft for the skin and safe to get wet. Great quality and durable cord. Thickness is 1mm.
*note: IF you have any questions regarding this product, please don't hesitate to ask.