"sex adult product factory" primary stage: mainly condoms and other contraceptives based. Although based contraception, but for men prolong sexual intercourse, overcoming premature ejaculation has a certain extent. There is also a simple oscillator, mainly to provide vibration stimulation to the penis and clitoris instruments and other sensitive areas. Some people do not know which role "sex adult product factory", mistaken for fatigue, and therefore to the wrist joint and foot joint use, and some even to the waist with, created a lot of jokes.
"sex adult product factory" advanced stage: the beginning of a market at the beginning of the transition to an advanced stage, the relatively small size, the average pharmacy dare sales, even though there can only allow the sale of units provision inch of land in the store, and more secret, for fear that impede weathering. Until the professional market with the establishment of this situation have improved.