This is a plug to hide unused speaker wires in the wall and cover the hole in the wall. It can easily be removed, and the wires retrieved again when needed. Slip the wires through the openings in the plug and secure them by twisting them together. Then push the plug into the wall and adjust it for a secure fit. You can also paint the plug to match the wall color for additional concealment. I designed this for an area where a surround sound speaker was wired up which I'm not currently using but may want to at some point in the future.