Tombow - MONO Twin Permanent Marker

MONO Twin Permanent Marker

Switch between fine detail and bold strokes with dual waterproof tips

A 0.4mm fine point for precise details and an 0.8mm bullet tip for bolder marks. This dual configuration eliminates the need to switch between separate markers mid-drawing, maintaining workflow when moving between line weights.

Black waterproof ink dries permanent across plastic, metal, wood, and cardboard surfaces, resisting smudging even when overworked with Tombow Dual Brush Pens or other water-based media. You can layer markers over these permanent lines without bleeding or feathering, essential for mixed-media work where crisp boundaries matter. Low-odor, non-toxic formulation makes extended sessions comfortable in shared or confined studio spaces.

The opposing tip design keeps both points protected when capped while providing immediate access to either width. Urban sketchers appreciate having multiple line weights in one compact tool; technical illustrators rely on the waterproof permanence for finished presentation work that won't deteriorate under handling.

Drawing and Illustration

Drawing and Illustration Purchase Guide

Drawing and Illustration Materials

Calligraphy Inks - Specialized inks for calligraphy and pen work. Includes traditional sumi ink, colored calligraphy inks, and metallic formulations for decorative writing.

Markers - Professional markers including alcohol-based, water-based, and pigment markers. Perfect for illustration, design work, and mixed media projects.

Pastels - Soft pastels, oil pastels, and pastel pencils for vibrant color work. Excellent for blending and creating rich, textured drawings.

Pencils - Graphite pencils in various hardness grades, colored pencils, and specialty drawing pencils for different techniques and surfaces.

Pens - Technical pens, fountain pens, and specialty drawing pens for precise line work and detailed illustrations.

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