The benefits of penis extender, as promised by the manufacturer, include: increase in the volume of semen ejaculated, harder and more lasting erections, highly intense orgasms, longer and wider penis (25% increase in length and 19% increase in girth) and no side effects – safe and comfortable to use. Penis extender acts on the principle of traction which is used in traditional orthopaedic surgery. You should not be deceived by the difference in price of the pro extender with any penile device you may have seen in the market. Another reason to show that the pro extender does work is the positive response it gets from people who use it.