2-piece mechanical coupling drainable system that combines the unique spiral adhesive with an audible inch click inch to ensure safe locking of the pouch to the barrier 11½ inch length, maxi 655 mL capacity, no panel Vinyl material Secure adherence to your skin Absorption of moisture from your skin – providing skin-friendliness and protection from irritation No clips or clamps to lose Large pouch Low-profile for discretion .