Length doesn't matter for men, hardness is the key | Benefits - youhaochu.com

The survey is about what are the most important factors in sex life. The results show that the top factor is the hardness of erection, followed by the duration of maintaining the erection, with their proportions being around 50% and 30% respectively. Surveys have indicated that the average length of Chinese men's penis after erection is 13.4 centimeters, which is much longer than needed for satisfaction.