Hollister Pouchkinsâ„¢ Two-Piece Infant Ostomy Drainable Pouch consists of an integrated closure system which provides security that you can feel as the plastic fasteners lock into place. Confidence is assured with the floating flange. It provides utmost security with the patented locking system that audibly clicks into place. It is comfortable for active children. It has odor-barrier rustle-free film and a unique four layer construction. *Two-piece Systems Do NOT Come with a Barrier