What I mean is jelqing, stretching, extending, pumping, within the limits expressed on [words=http://www.mattersofsize.com/join-now.html]MOS[/words], is safe. The penis does not contain bones or any major muscle, there is very little that can damage the penis. Aside from fatigue, bruising and thrombosis I am hard pressed to find an example of someone who has received a permanent injury due to natural Penis Enlargement and the devices suggested here on [words=http://www.mattersofsize.com/join-now.html]MOS[/words]. I have, however, heard of numerous permanent injuries due to penis augmentation surgeries.