This ivory raceway piece is a flat elbow (90 degree), it is designed to lay flat on the ground and bridge two straight 3/4 inch raceway runs at a corner. Use surface mount cable raceways to protect and tidy up cable runs around the home or office where running through walls is not possible or practical. These raceways are useful for nearly any type of cable from phone, network, USB, VGA, Audio/Video, Speaker and more. Some sample applications would be: office cubicles where walls are not available or the working space can change configuration or in the existing home where one wants to install surround speakers and hide/protect the speaker cables/wires.