Little Ones One-piece Urostomy Pouch - With ConvaTec's Little Ones ostomy system, finding the right ostomy system is elementary. Each product has been specially designed to comfortably fit a child's unique body contours. All Little Ones products are flexible, durable and easy to remove. Cut-to-fit, Standard 5" pouch, with fold up tap. Transparent. 8mm (5/16") - 25mm (1").