EXP 3/2022 The Coloplast 10561 SenSura Mio Flex Ostomy Barrier is a set of 5 gray barrier rings designed for ileostomy and colostomy patients. With an opening diameter ranging from 3/8″ to 1 7/8″, these one-size fits all barriers are made in Hungary and come with a California Prop 65 Warning. The SenSura® Mio model offers flexibility and security for comfortable use in daily living.