Alvin Professional 5-1/2-inch Oval Nib Ruling Pen is precision ground, tapered and finely honed to produce precise ruled lines with ink and paint. Adjustable blade for desired line widths. Features a hardened nickel-plated steel nib with spring blade design set in black plastic handle. Packaged in see-through protective case.
Use to paint fine lines with a straight edge. Fill the nib with fluid paint or ink and draw on a smooth surface for flowing, uninterrupted lines. Adjust the blade for the desired line width.