Thank you for viewing. This is a Hawaiian-exclusive Hawaiian jewelry fish hook bone necklace. Material: Top: Water buffalo bone Cord: Hemp cord Size: Top: Approximately 5.5cm (length) Approximately 3.5cm (width) Approximately 6mm (thickness) Cord length: Approximately 70cm (maximum) Adjustable with an adjuster Since it is new, the hemp cord is not yet broken in. There are creases. The cord will become more supple after sliding the adjuster a few times.