Material: Cedar, oil varnish finish. External dimensions approx. 3.7cm x 3.7cm x 2.3cm (thickness) The "鯊" carving is hand-carved, not laser engraved. Can be used as a strap or pin-on. The reel inside is from CanDo. Lol. This is the YouTube video from Heartful Fishing Club, who fish for gobies all year round. https://youtu.be/z2wyucT8-EU?si=q78E7pFtFSyGVaaN As this is a handmade item, we appreciate your understanding.