As influenced by a recent quip at Funder's, I noticed how beneficial it would be, for manual Penis Enlargement tunica stretches, to make use of that empty cylinder of Pringles tater chips I had hitherto felt so guilty about. Here is the low-down: take the empty tube (or any other uneasily collaspible cylinder with similar length and circumference) and place under the ventral (underside) side of the penis. Using your preferred hand, grap the glans of the penis (preferably using a grip aid so as to be allowed to inflate the duration and benefits of the stretch) and stretch over the dorsal (top) side of the can. Place the wrist of the stretching hand under the can so that an upward force generated by the wrist can press the can upwards and against the downward force generated by the pull. This exercise is simply an improved A-stretch. I would recommend doing 20 one minute pulls in this fashion. If, after doing so, no tunica fatigue is felt, increase the total number of repetitions as dictated by physiological sensations of fatigue.