Alterna One Pc Open bag for Colostomy / Ileostomy The spiral adhesive is unique to Alterna , The spiral form helps to ensure that Alterna is both secure and skin friendly Security - Adheres securely to the skin around the stoma , yet is painless to remove Resistant to erosion , which protects the skin against irritation Skin Friendliness : Absorbs excess moisture from the skin Maintains the skin's Normal PH balance Comfort : The adhesive has extra Flexibility - for more comfortable feel Six flex zones in the edge area - allowing for more comfortable body movement The Alterna Free range - Available in one pc and two pc for all stoma types Features and Benefits : # Hide away outlet: feature offers increased discretion , security , comfort, and hygiene It easily Bend , fold , seal and hide away # Highly effective filter - Filter provides effective and continuous gas filtration, which also contributes to a longer wear time. # Multichamber design - The chamber will distribute the urine and thereby create a flat bag . In addition, the chambers reduce splashing sounds # Non return Valve - The non return valve prevents effectively urine from flowing back to the stoma , thereby reducing the risk of urinary infection and skin problems. Alterna Free Two-pc Ostomy appliances Convex light base plate for colostomy / Ileostomy Available sizes - 17735 - convex Light - 40mm 17737- 50mm 17741-60mm 17761- 40mm 17762 - 50mm 17763 - 60mm