With the famous SOS Talisman logo on one side, St. Christopher (the patron Saint of travel) is embossed on the other. Measuring rough the size of a 10 pence piece, twist off one side of the capsule to reveal an insoluble paper strip where vital medical details can be stored. We would recommend this gold plated steel or titanium Talisman's for those on medication as these will never tarnish. Strung from a 22/55.5cm gold plated curb chain.