Plugs are fundamental components in any electrical system, serving as the interface between electrical devices and power sources. Designed to connect to outlets or sockets, plugs safely deliver electricity to appliances, tools, and electronics. They are available in a variety of types, shapes, and sizes to accommodate different electrical standards, voltages, and applications across the globe. Common plug types include three-pin plugs, used for grounded connections, and two-pin plugs for devices that do not require grounding. Modern plugs often incorporate safety features such as insulated pins, built-in fuses, and ergonomic designs for ease of use. In addition to traditional plugs, specialised varieties like USB plugs and smart plugs cater to the growing demand for efficient, high-tech solutions. Whether powering a household appliance or connecting industrial machinery, plugs play a vital role in ensuring safe and reliable access to electricity.