ConvaTec SUR-FIT® Natura® Two-Piece Urostomy Pouch with One-Sided Comfort Panel and Fold-Up Tap 1-3/4" Flange, Small, Transparent, Anti-Reflux ValveThe SUR-FIT® Natura® 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.Anti-reflux valve prevents urine from returning to top of pouch around the stoma.Coupling ring provides audible click confirming secure connection to skin barrier.Comfort panels are designed to be quiet and odor-proof helping maintain discretion.Fold up tap permit easy connection to night drainage.