Serenity is Forever NA Narcotics Anonymous Symbol Stainless Steel Dog Tag Necklace Laser Engraved by Artist in Recovery Authentic US military dog tag, 100% Stainless Steel, with 30" ball chain. As with most military grade items, expect minor scuffs. Permanent black mark that cannot rub off or fade Officially licensed by Narcotics Anoymous. Shows NA symbol. Very casual for Men or Women