Sonic The Hedgehog: FiGPiN Enamel Pin Knuckles 
- FiGPiN Number: 584
- Cast zinc alloy inlaid with hard synthetic color enamel.
- Finished with an electroplated nickel coating.
- Stands up on a patented FiGPiN soft rubber backer.
- Encased in a museum-quality, clear poly-carbonate display box with a black ABS plastic base.
- A uniquely designed and character-specific background card finishes the look.
- Sized approximately 3″ tall (76.2mm) 3/32″ thick (2.0mm)
- All FiGPiNs include a laser engraved, alphanumeric serial number on the back, making every single one uniquely yours.