Medical Alert Tags. These tags all come with a roll ball chain to go around your neck. These tags are great in an emergency if for some reason you cannot inform someone of your medical condition. Please keep chains away from small children. Medical Alert Tag - Diabetic Medical alert tag - diabetic. Red, shiny, tag with the medical alert symbol. Includes 24-inch ball chain. tag1$3.00 Medical Alert Tag - Allergic to Penicillin Medical alert tag - allergic to penicillin. Red, shiny, tag with the medical alert symbol. Includes 24-inch ball chain. tag2$3.00 Medical Alert Tag - Allergic to Sulfa Medical alert tag - sulfa. Red, shiny, tag with the medical alert symbol. Includes 24-inch ball chain. tag3$3.00 Medical Alert Tag - Allergic to Peanuts Medical alert tag - allergic to peanuts. Red, shiny, tag with the medical alert symbol. Includes 24-inch ball chain. tag4$3.00 Medical Alert Tag - Alzheimers Medical alert tag - Alzheimers. Red, shiny, tag with the medical alert symbol. Includes 24-inch ball chain. tag5$3.00