Dolphin keychain made of resin. The contents do not move. Jellyfish parts are inside. This was made by a beginner who recently started using resin, so there may be air bubbles on the surface or other imperfections compared to other people's work. We appreciate your understanding before considering a purchase. Fulltiger Aero Handmade Resin Light Blue y2k Angelic Realm Fairycore Shaker