Electric unicycles are prevailing overnight. There’re numerous subscribes are posts on Youtube and Facebook of them. Consequently lots of brands and manufacturers who claim themselves as “independent developer”, or “self-balancing technology”, or “Hi-tech”are springing up all over. However the truth behind the phenomenon is, a large proportion of young and trendy customers lack the quality and safety awareness, and many off-grade suppliers assemble counterfeits to make quick and easy money, which has already posted severe threats to customers’ safety.