The chunky double-rolo link chain on our sterling silver medical ID necklace adds a unique style to a life saving gift. The necklace includes a round tag with the red enameled medical alert symbol, and it has a round toggle clasp. The overall length of the necklace is approximately 18 inches with the tag measuring in at 1/2 of an inch in diameter. Personalize the sterling silver necklace with engraving to create a meaningful gift for a loved one. Silver Gallery's collection of medical alert jewelry is delivered in a signature gift boxes.