Coloplast 1910 Urostomy Bag size 35mm are special pouches used to collect urine after bladder surgery. These are suitable for people who have just had their urostomy surgery. It comes with a custom cut option to cut it up to 35mm. The material is skin friendly and can be used for longer durations. It has an opening area with a cork attached to hold the urine inside. Simply remove the cork to dispose of the urine.