Permanent outlet extender. Provides twice the outlets, but does not take up twice the wall space. Permanently installed outlet extender that strikes an important balance between aesthetics and functionality where most other solutions fall short of. In the closed position theOUTlet looks like a standard outlet. It has two available receptacles and still fits into your standard duplex wall box. When opened, it instantly doubles your receptacles without taking up any additional wall space. Simply slide the button to hide or expose additional receptacles when and where you need them. No more hunting for outlet expanders in the junk drawer, looking for the last available extension cord, or having to deal with an ugly solution that just doesn't meet your needs. 4 receptacles.