MATERIAL: 316L stainless steel,durability,dighly resistant to scratching,rusting and tarnishing,high Quality.ITEM SIZE:21mm*25mm.This medical alert charm can be added to any of you personalized ID jewelry.PEOPLE WITH THE FOLLOWING CONDITIONS SHOULD WEAR A MEDICAL ID JEWELRY:Alzheimer??s,Autism/Special Needs Children??Blood Disorders??Blood Thinners,Diabetes,Dementia,Drug Allergies (i.e. Penicillin, morphine, sulfa),Emphysema/Breathing Disorders??Epilepsy/Seizures,Food Allergies,Hearing,vision, or mentally impaired,Heart Disease,Insect Allergies,Kidney Disease,Pulmonary Conditions,Sickle Cell Anemia,Surgery, transplant,cancer patients…Please clickCustomize Nowselect engraving font and fill in your engrave information then add to cart,we will get your engrave info from your order,if you want change the engrave info after finish the payment,please contact us with your correct engrave info immediately,we will do our best to help you.Come with a Medical ID Cards,Front and back availability for medical and emergency contact information,Carry in Your Wallet.Benefits of wearing Medical ID Jewelry include:A prompt and effective diagnosis that greatly assists proper treatment;The ability to have a contact reached in an emergency;The prevention of misdiagnosis which can lead to harmful medical errors or unnecessary treatment.