I ordered a few new Venus 200 tubes to accommodate the various size cocks I see but it's not always easy to gauge what size I need when the cock isn't fully erect. Some guys are showers, some are growers and some are showers and growers. This new patient was a grower and I selected a tube one size too small. His cock filled it completely and his body movement is a clear indicator that the size felt good. The build up to his orgasm seemed amazing. I want a pleasure build up like that! It still felt amazing for him and with my finger massaging his prostate, he had no problem achieving a mind blowing orgasm. Removing his thick cock from the tube after he came was another story.