Divoti Custom Engraved Engraved Mix N Match 1/2" (12.7mm) 316L Stainless Medical ID Charms Durable 1/2" (12.7mm) 316L Stainless Steel d Medical Alert Charm Size (mm): 1/2" (12.7mm) X 1.5 mm deep Front: Deep embossed symbol, hard enamel filled and high polished. Back: Laser marked on brushed surface. Excellent corrosion and wear resistance. Attachment: jump ring + 11-mm lobster claw clasp Free medical ID wallet card & medical alert apps- KEEPSAKE QUALITY, RADICAL PRICES & FAVORITE STYLES, LET'S WATCH: vimeo.com/divoti/medid