Provides a way to safely route power and AV cables (such as HDMI) up the wall in existing construction so that you can mount your TV on the wall and not see the cables. Even comes with a hole saw! This is a new, unopened box. See the official website for thorough explanation, description, and installation video. https://www.echogear.com/av-accessories/in-wall-power-cable-management-kit-egav-cmiwp1/