A male-to-male extension cord is a power cord that has prongs, also known as the "male" end, on each side of the cord while normal extension cords have both a male end and a female end.

Even the prongs of the extension cord are reinforced to prevent bending or breaking, while the female connector lights up to indicate power is on and the cable is bright yellow, furthering safety ...

Normal extension cords have a so-called male plug that goes into the wall and a female plug at the end where you can plug in your device. There’s absolutely no reason for male-to-male extension ...