A fluid outlet system, applicable for containers of liquid substances is provided. The fluid outlet system has a circular opening, at a rear end of a cylindrical tube, having a removable metallic ball-covering that controls the flow of liquid from the container, as desired. Specifically, the fluid outlet system has a circular opening at a rear end of a cylindrical tube, wherein the circular opening is provided with a removable metallic ball-covering; and wherein the removable metallic ball-covering can be easily dislodged by a mechanical switch in order to dispense liquid, and is securely held in place by magnets on a valve seat of the circular opening, when the fluid outlet system is at a closed position, to stop liquid flow.