What does black five e-commerce mean?

It refers to an e-commerce company that operates five products: weight loss, aphrodisiac, height increase, breast enhancement and medical devices.

The "second-class e-commerce" is based on the original Black Five, adding some new products, such as Buddha brand, hair loss treatment, tea, telescope, launcher, online divination and so on. Whether it is the second-class e-commerce or the Black Five, these are relatively profitable online earning projects.