Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Technical Pens
Origin	-
Tip Type	Flat Chisel Tip
Available Sizes	2.0mm and 3.0mm
Ink Color	Architectural Black
Ink Base	Water-based, Low Odor
Ideal Surface	Wallboard, Brick, Concrete, Paper
Line Consistency	Uniform width regardless of angle
Drying Time	Fast-drying (approx. 5 seconds)
Body Material	Durable Plastic with Grip Zone
Cap Design	Ventilated Safety Cap with Clip
Primary Use Case	Sketching, Rendering, Layout Marking

6 reviews

Anonymous

Mar 26, 2026

Rating: 4/5

Good value for professionals

Bought a pack for our design firm. They last longer than expected and the black is very opaque. Would love to see more color options in the future.

Anonymous

Mar 24, 2026

Rating: 5/5

Consistent performance on rough surfaces

Impressed by how well this writes on rough concrete blocks. Most markers skip or fray, but the flat tip glides right over the texture. Highly recommended for site work.

Anonymous

Mar 22, 2026

Rating: 4/5

Great ink flow, sturdy build

The 3.0mm size is excellent for bold architectural sketches. Ink flows smoothly without blotting. I deducted one star only because the cap can be a bit tight to remove quickly with gloves on.

Anonymous

Mar 18, 2026

Rating: 5/5

No bleed-through on standard paper

Surprised that despite being marketed for walls, it works beautifully on sketchbook paper without bleeding through to the next page. The fast-drying ink is a huge plus.

Anonymous

Mar 09, 2026

Rating: 5/5

Essential for rendering classes

As an architecture student, this pen has become my go-to for presentation boards. The line weight is perfect for highlighting structural elements without looking messy.

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for quick wall layouts

I use these daily for marking out electrical paths on drywall. The flat tip creates a consistent line even when held at an angle, which saves me so much time compared to round markers.

5 FAQ

Q: Is this safe to use indoors without ventilation?

A: Yes, the ink is water-based and low-odor, making it safe for indoor use in standard office or construction environments. However, we always recommend working in a well-ventilated area when possible.

Q: Can I refill these pens?

A: No, these markers are designed as disposable units to ensure consistent ink quality and tip integrity. We recommend recycling the body according to local plastic recycling guidelines.

Q: Is the ink permanent or washable?

A: The ink is designed to be semi-permanent on porous surfaces like brick and drywall but can be wiped off non-porous surfaces like glass or whiteboards while wet. Once dry on walls, it requires scrubbing to remove.

Q: What is the difference between the 2.0mm and 3.0mm sizes?

A: The 2.0mm is ideal for detailed sketching and finer layout lines, while the 3.0mm provides a bolder line suitable for long-distance visibility on large walls or thick rendering strokes.

Q: Does the 2.0mm tip wear down quickly?

A: The flat tip is made from durable felt resistant to fraying. With normal use on standard surfaces, the tip should maintain its shape for several weeks of continuous professional use.

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