, EHC excellent return on investment for female condoms in sub-Saharan Africa. For example, in Nigeria an investment of $1 offers a $3.20 return on investment to the country's economy. Numerous clinical and behavioral studies have been conducted regarding use of the female condom. Studies show that in many cultures, the female condom is found acceptable by women and their partners. Importantly, studies also show that when the female condom is made available as an option along with male condoms there is a significant increase in protected sex acts with a concurrent decrease in STIs. The increase in protected sex acts varies by country and averages between 10 percent and 35 percent. FC2 consists of a soft, loose fitting sheath and two rings: an external ring of rolled nitrile and a loose internal ring made of flexible polyurethane. FC2's soft sheath lines the vagina, preventing skin-to-skin contact during intercourse. Its external ring remains outside the vagina, partially covering the external genitalia. The internal ring is used for insertion and helps keep the device in place during use. FC2's primary raw material, a nitrile polymer, offers a number of benefits over natural rubber latex, the raw material most commonly used in male condoms. FC2's nitrile polymer is stronger than latex, reducing the probability that the female condom sheath will tear during use. Unlike latex, FC2's nitrile polymer quickly transfers heat. FC2 can warm to body temperature immediately upon insertion, which may enhance the user's sensation and pleasure. Unlike the male condom, FC2 may be inserted in advance of arousal, eliminating disruption during sexual intimacy. FC2 is also an alternative to latex sensitive users who are unable to use latex male or female condoms without irritation. To the Company's knowledge, there is no reported allergy to the nitrile polymer. FC2 is pre- lubricated, disposable, and recommended for use during a single sex act. FC2 is not reusable. The first clinica