Allergic To Sulfa White Medical Alert Italian Charm Superlink Bracelet Jewelry Link We Use a Stainless Steel Base on This Allergic To Sulfa White Medical Alert Italian Charm Superlink charms are twice as long as standard charms and really stand out. Interchangeable and combinable with our entire line of Italian Charms as well as with all other major brands. This Italian Charm can be used to make a unique and fashionable gift. Add to your existing charm bracelet or start a new one today. Interlocking charms (AKA links) hook to other charms using an internternal spring.