Ultramax Deep Large Flange on Standard Size Drainable Pouch With Aquatack Barrier and Kwick-Klose II Fastener Cut-To-Fit Starter Hole 1/2"-2-1/2", Opaque. Unique Petal Design Creates a Flexible, Comfortable Fit For All Abdominal Contours, Flexible Flange Creates an Optimal Seal. Ideal For Retracted, Flush and Hard-To-Fit Stomas.