A single male circumcision, affordable and without surgery … Israeli start-up Circ MedTech PrePex invented a device consisting of two rings and a rubber band. Once positioned on the end of sex, the object intersects the bloodstream at the prepuce. This atrophies and drops of itself after one week. A simple procedure that does not require a sterile environment. The device could thrive in developing countries to fight against the AIDS virus. Clinical trials have shown that male circumcision reduces the risk of contracting HIV through heterosexual sex by about 60%.