Toxic Radioactive Symbol Lapel Pin Badge. Diameter: 18mm. A yellow, black & silver circular radio active symbol. Start or add to your collection of Lapel, hat or bag pins with this super gift boxed novelty badge. This badge fastens with a sturdy butterfly clip at the back. Presented in a black gift box. Toxic Radioactive Symbol Lapel Pin Badge Butterfly Clip Fastening Presented in a Gift Box