The Stainless Steel Polished Dog Tag Double (2 Tags on 1 chain) (Also known as Marine or Surgical Stainless Steel -Grade 316- which is the highest grade of Stainless Steel) allows up to Six (6) Lines of Identification Information on the front and the Medical Logo on the back of the one Dog-Tag. The same info can be on the 2nd Tag or can be used for more info. Professionally Laser Engraved to the finest detail which will not rub off or discolour under normal wearing circumstances ensuring durability. This offer includes a ball chain of around 60 cm. It speaks on your behalf In Case of Emergencies.