With our stay plugged locking device, accidental disconnection and related safety issues are outdated. With a simple push of the button, stay plugged pins slip through the plug's blade holes, automatically locking any standard 125-Volt plug. Stay plugged technology is weather-resistant, dust-resistant and dirt-resistant, making it ideal for indoor and outdoor use. Stay plugged locking devices have a holding strength of 40 lbs. And are ideal for applications including construction, industrial, woodworking and machine Shops, home and garden, automotive, lighting, sound and stage, farms and more.