A classic! This is the original stainless steel medical ID and chain. It is one of Medic Alerts most popular and hard-wearing products. A durable, non-allergenic stainless steel medical ID attached to a non-allergenic stainless steel curb chain with a secure sister hook clasp. Ideal for everyday wear. Fit: For the best fit, select the item that best matches your firm, but not too tight wrist measurement. The Medic Alert team will send you a product that will ensure your comfort and that your medical ID can be easily turned over to read in an emergency.