The Uni-ball Signo UM-151 Chart Correction Pen, also known as Signo DX, is a smooth writing and exceptional ink pen. Whether it's writing meticulous notes, marking your calendar, or even chart corrections, this sturdy pen will do the job well. Everything about this pen, from the solid construction to the carefully-formulated ink, ensures a desirable writing experience. The sturdy tip will not bend or break, even with heavy-handed use. The ink flows smoothly and is waterproof, fade-resistant, and feather-resistant. Providing beautifully clean violet lines, the Signo DX will help you in a multitude of writing endeavors! Color: Violet