6 of 8 people found the following review helpful
, 28 Jan 2011
OK, the pump does its job, increases blod flow to the penis. Negative is the weak vacum that is generated when the hand pump retuns to its original size after pumping. Also, the rubber ring has no cushion so when a tight vacuum is formed, the tube can hurt against the pelvis. Also, ur balls can be sucked in, so be carefu..
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