Three hundred ancient Chinese sex relics will be on show along with sex-related products at Shanghai's fourth three-day sex expo this weekend.

Visitors can listen to free lectures on sex history and health care, said organizers in a news conference on Tuesday.

Liu Dalin, a renowned sex expert and founder of China's first sex museum in Tongli, Jiangsu Province, will bring about 300 historic relics and talk about the history of sex and culture.

"Sex is a part of being human and good sex is part of a quality life. We want to guide the public to an appropriate and healthy attitude towards sex through the show," Liu said. "The show is effective in helping the public to learn about Chinese culture and promote Chinese history to the world."

All items have explanations in Chinese and English, added Liu. He and executive curator Hu Hongxia will talk about the exhibits.

"Moreover, they will also give lectures with another three experts from home and abroad to promote proper understanding on sex, sex history and modern health care," said Gao Guoxing, an official at the China Exhibition Center Group Corporation's Shanghai branch. "Since most experts have a medical background, they can also give consultations on the spot."

The Fourth China International Adult Toys and Reproductive Health Exhibition will run at Shanghai International Exhibition Center in Hongqiao from Friday to Sunday. Entrance fees are 30 yuan (US$3.9), and visitors must be over 18.

About 100 domestic and overseas companies that deal in sex-related products will take part in the 6,000-square-meter expo. Annual sales of sex products are more than 50 billion yuan in China. The past three fairs attracted more than 70,000 visitors, including 6,000 international buyers.

(Xinhua News Agency August 8, 2007)