System signals a secure, accurate closure with a series of audible clicks. A simple snap-off, snap on design allows users to change the pouch quickly to match activities without removing the skin barrier from the skin.Natura Closed-End Pouches are designed for one-time usage. They are available with a filter that is designed to reduce odor and gas buildup. There's no draining or uncomfortable clip to worry about. When you're ready, you simply remove the pouch, place it into a disposable bag, then discard it.- Flange Cap, Filter, 1-Sided Comfort Panel, Opaque, 1 3/4" Flange, 25/bx (Continental US Only)