Everything is fine. They work. Hardly. Without security certificates. They are usually cast in plastic along with the L, N, and earth symbols. Some of my IEC cables could not be fully connected. Molded plastic is a bit rough in places. The curved tab design has a smaller contact area than appears ideal. Tips barely pick up solder, a bit uneven, but plastic doesn't melt at moderate heat (iron at 700 degrees Fahrenheit). You get a lot of plugs for the money, but I'd rather have 5 basic ones for the same price.