• Put the measuring scale to 1/3 position of coronary sulcus measure the outer diameter of the glans, the position is nearly parallel to the shaft. If there is no exact size, prefer to choose bigger one.
• Use measuring scale to measure.
• Put the measuring scale to 1/3 position of coronary sulcus measure the outer diameter of the glans, the position is nearly parallel to the shaft. If there is no ex