Brush Sign Pen PENTEL SES15 neon blue — calligraphy brush pen with flexible brush tip, single piece

PENTEL Brush Sign Pen SES15 in neon blue is a single-piece calligraphy brush pen with a flexible brush tip designed for expressive lettering, illustration and hand lettering. The tapered synthetic brush tip responds to pressure and angle to create variable stroke widths from fine hairlines to broader strokes, making it suitable for modern calligraphy, decorative accents and colored details in artwork and design projects.

Advantages

The pen offers a responsive flexible brush tip that adapts to hand pressure and tilt, allowing for smooth transitions between thin and thick lines. Its neon blue ink delivers vivid color for emphasis and decorative elements, while the single-piece format provides a convenient, easy-to-carry tool for on-the-go sketching and lettering. The water-based formulation ensures easy blending with compatible media and predictable ink flow for consistent results.

Suitable for

• Modern calligraphy and brush lettering practice
• Illustration details and colored line work
• Design mock-ups, accents and decorative typography
• Journaling, planners and scrapbooking accents

When it may not be suitable

This brush pen may not be ideal when a permanent or waterproof ink is required; water-based inks can smudge or run if exposed to moisture. It is also less suitable for extremely fine technical drawing where a rigid nib or precise pen size is needed, since the flexible brush tip produces variable stroke widths by design.

Key specifications

• Tip type: flexible synthetic brush tip (tapered)
• Ink color: neon blue
• Ink type: water-based dye ink
• Form factor: single pen (individual piece)
• Typical applications: calligraphy, illustration, hand lettering, decorative accents

How to use

Hold the pen at different angles and vary pressure to control stroke width: light pressure for thin hairlines and increased pressure for broader strokes. Practice basic strokes—upstrokes with light pressure and downstrokes with heavier pressure—to develop consistent letterforms. For illustrations or accents, use layering or gentle blending with compatible water-based pens or a water brush to create gradients and color transitions. Store horizontally or with the cap securely closed to maintain ink flow.

What to consider before purchase

• Ink permanence: water-based ink is vibrant but not fully waterproof
• Tip flexibility: designed for variable strokes, not rigid technical lines
• Color effect: neon blue for bright accents and highlights
• Compatibility: blends with other water-based markers and brushes

Usage recommendations

For best results in modern calligraphy, warm up with basic stroke drills before composing words, test the pen on the paper you plan to use to check bleeding and absorbency, and combine the neon blue with neutral tones for balanced contrast in layouts and illustrations.