Thank you for viewing. This is a Hawaiian-exclusive Koa wood fish hook necklace, a piece of Hawaiian jewelry. Materials: Top: Koa wood Cord: Hemp cord Size: Top: Approximately 5cm (length) Approximately 4cm (width) Approximately 5mm (thickness) Cord length: Up to 70cm, 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.