Fail-Safe key Dharma Necklace

Fail-Safe Lost Key

This is the Fail-Safe key that Desmond rip off from Kelvin's neck. The key has the Swan's logo and DHARMA Initiative on it. Fortunately, fans will probably be getting them from the letterbox and not ripping off from somebody's neck.  

Measurement: 2 1/2 inches long ( about 6.3cm )