Rhodium Coated Sterling Silver Medical ID Bracelet. Designed by MedicAlert&reg; "Penicillin Allergy" The original MedicAlert medical ID with free year of MedicAlert Essential included Rhodium coating provides a durable, hard and attractive finish that helps prevent tarnishing and is resistant to scratching Bracelet is personally engraved to communicate your Penicillin Allergy Only MedicAlert medical IDs are connected to our live 24/7 Emergency Response MedicAlert medical IDs are recognized by emergency professionals and physicians around the world