Abstract: The present invention provides a junction form which may be used to provide junctions in split tube used to protect optical fibers. The form consists of a base with multiple arms extending therefrom, with retainers at the base and at the ends of the arms. These retainers engage edges in the split tubes formed by the split found initially in the split tubes, and by a second split formed at the ends of the split tubes opposite the original split. The junction created by the junction form protects the optical fibers against being bent at a sharp angle, while allowing the optical fiber to be installed therein by simply pushing the fibers into the junction and the split tube. The present invention also provides methods of creating junctions from split tubes.