My Identity Doctor - Pre-Engraved & Customized Pacemaker Medical ID Heart Pendant Necklace, Steel BLACK EASY TO READ: #1 Recommended black engraving for yourlife safety with Warranty (see photos) CUSTOM & PRE-ENGRAVED: Customize ID before checkout. Also pre-engraved with PACEMAKER IMPORTANT: Check spelling, phone numbers & grammar when ordering. Cannot be changed or redone High quality hypoallergenic 1mm thick surgical 316L steel Chain: 27 in / 68.6 cm, ID: 1in / 2.5 cm x .8 in / 2.1 cm, Free ID card Incld