My Identity Doctor - Custom Engraved Womens Medical Alert Bracelet, O-Link BLACK & EASY TO READ: Custom engraved medical bracelet with Lifetime Warranty - Black engraving recommended for your safety (see photos) - Warranty provided by My Identity Doctor ENGRAVING TIPS: 1.Medical condition 2.Medication/Allergies 3.ICE: Contact Number - Engraving is not proof read and can not be changed. SIZING: Order your exact wrist size. See sizing photo. Measure small part of wrist slightly snug. (or slightly larger). Extra links are provided, can be re-sized locally if needed. IMPORTANT: Check spelling, grammar, & phone numbers before ordering. Engraving cannot be changed. Designed for teens & adults looking for stylish medical bracelet. O-Link style chain (apx .25in/.63cm width) ID Plate (1in/2.5cm x 1.2in/3cm) 316L Steel, non corrosive.