Koh-I-Noor RapidoSketch Pen and Ink Set.35mm Pen Point and .75 oz. Bottle of Ultradraw Black Ink, 1 Set (3265BX.01E) Professional pen produces precise lines for all your pen and ink work Pen offers consistent performance 0.35mm Stainless Steel Point Included bottle of Koh-I-Noor Ultradraw Black Ink is a versatile, waterproof drawing ink with slow drying for long open pen time Made in USA