Pentel Arts Tradio Stylo Sketch Pen - A flexible nib creates a variety of line widths from thick to thin depending on angle and pressure applied. The rich water-based dye ink dries quickly for sketching and drawing and the ink glides effortlessly across paper with the free-flow liquid ink system. This package contains one 5.5 inch long sketch pen. Conforms to ASTM D 4236. Imported.