SwitchGards prevents turning a switch on or off.
You have a switch plate cover with a switch that needs to stay on or off, but someone is always turning the switch on or off by accident. Maybe that switch in the wall plate is connected to a heating system fan, or a refrigerator, or whatever, but you need it to stay on or off when you need it. These Switchgards attach to the switch plates and you have to physically open the door to make these changes, so they cannot be accessed accidentally. A must for a situation like this and they are still attractive looking with attaches to your switch plates and are a few colors to compliment your switchplate finish.