This ostomy system is a comprehensive product line with our latest skin barrier technologies. The plastic coupling ring allows the pouch and skin barrier to snap together for audible security. People living with a urostomy have unique needs, which is why ConvaTec offers a pouch product line especially for them. SUR-FIT Natura urostomy pouches have an extended anti-reflux valve, comfort panels and a choice of two types of drainage taps.- Urostomy Pouch, Standard, 10", 1-Sided Comfort Panel, Fold-Over Tap, Transparent, 2 1/4" Flange, 10/bx 14-21 Days