A device for repairing a hole in a wall structure, the device comprising: a body; a plurality of arm members mounted relative to the body, wherein a webbing member extends between two or more of the arm members; and a displaceable member associated with the body, wherein displacement of the displaceable member actuates the plurality of arm members to move relative to the body between a retracted condition and an extended condition in which the webbing member is stretched relatively tightly between the arm members to form a substantially planar surface.