Abstract: A tool for use in connection with a wall covering material source having a nozzle to dispense wall material to be applied to a wall. The has a plate having a front surface, and a back surface which is adapted to slide along the wall surface. The back surface defines an opening, and the plate defines a passageway passing through the plate and coupled to the back surface opening. A tube connected to the front surface of the plate and coupled to the passageway of the plate is adapted to receive the nozzle of the wall material source. The plate passageway directs the wall material dispensed from the source nozzle to the back surface opening to be delivered for application to the wall surface.