The Square D X Series 15A Single-Pole Switch Module with Side Wire Clamps allows you to swap out faceplates quickly and easily without removing the switch and rewiring. Its unique patented switch module is designed to support the swap-out of color rocker plate cover plate (not provided) that easily snaps into place for a modern, flush-facing finish to your walls. Enjoy a consistent look in your room or home with the full line of Square D X Series switches, dimmers, sensors, and receptacles. Sold in 1 piece, the connection are screw terminal. Its matching mounting box can be recessed into the surface of the wall for flush mounting. This device is compatible with the rocker plate and the cover plates of the XD series, so that the personalization of your interior design with many styles of dcor is possible. This switch has a width of 37 mm, a height of 103 mm and a depth of 35 mm. The UL certified switch without the rocker plate allows for use during rough-in phase. It supports upgrading the color or design of the switch after initial installation without removing the switch from the wall. By being mercury free and heavy metal free, this switch is cUlus certified.