The WB-2S is designed to accompany the Future Automation PS TV swivel mount. This in wall box will not only allow for a flush fit of your TV it will also allow for installation of power supply and connection points to be discreetly concealed behind the TV. The twin stud box allows for even more storage space over the standard WB, as well as increased lateral adjustment; up to 146mm(5.75") either side (Except WB16-2S).