Rapid-Up, 36", Removable Screen Door, Fiberglass Screen Keeps Bugs Out, Hands Free Operation, Middle Split Allows For Walking Through, Magnets Catch At Center To Keep The Screen Closed When Not In Use, Easy To Install, No Tools Required, Perfect For Patio & French Doors, Can Be Used On Doors Up To 36", Rapid-Up Attaches At Top Of Doorway With A Spring Tension Rod.