Data from the Chinese online dating giant Zhenai.com reveals that while men are most interested in how a woman looks, women care more about a man's income. Profession is also quite important. Chinese men favor women working as primary school teachers and nurses while Chinese women prefer men in the IT or finance industry. Women in IT or finance are the least desired. Zhenai enables users to send each other digital "winks." For a man, the more money he earns the more "winks" he receives. For a woman, her income does not matter until the 50,000-yuan mark (US$7,135), after which the number of "winks" falls slightly. Men typically prefer women three years younger than they are whereas women look for men who are three years older on average. However, this changes if the man becomes exceptionally wealthy; the more money he makes the more likely he is to look for younger women.