Our Printed Wristbands are made from 100% medical grade silicone (non-toxic and non-allergenic) and are produced with silk screen printing technology. The message and artwork are silk-screened and smoothly printed directly on the top layer of the wristbands to create a sleek and comprehensive look. These wristbands are produced with approximate circumferences of 202mm (8 inches) for Adult sizes and 180mm (7 inches) for Youth sizes.