?? ??? ?? ?, '?? ? ??' > '???? ???'? ???? ?? ???.Iv had a rigid scope utilised 2 times, once at 15 for bladder stones, after in may for your urethrotomy. Flexi ones are frequently 5.5 mm large, rigid are all over 7mm. Or round the width of a pencil. They often dilate the opening so they haven't got to power it in, the opening in the average male is