Celebrated for its simplicity, the flexible Expanda Band fits like a designer watch band. It stretches over your hand to come on and off with ease. A classic non-allergenic stainless steel medical ID is attached to a non-allergenic stainless steel expanda band via jump rings. Ideal for everyday wear. Fit: The expanda band is designed to fit your wrist like a watch band. 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.