Calligraphy pen with a 3-4 mm wide nib. The pen is filled with black water-based pigment ink that, when it is dry, is both fade- and waterproof. MTN Technical Markers come in a lot of different sizes, and even with a brush tip, if you’re really into brush lettering or just like more organic outlines. You can check out our entire assortment from MTN Montana Colors here.
