Chalkola 20 Liquid Chalk Pens for Blackboard (6mm reversible tips) – neon, pastel & metallic markers for windows, glass & more
Product description
Quick overview
If you like the look of chalk but don’t love the mess, Chalkola’s liquid chalk pens are built for exactly that trade-off. This set brings 20 bright, bold colours, mixing vivid neon shades, softer pastels/vintage tones, and metallic silver and gold. On paper, that colour variety is the main reason people buy a kit like this: it’s meant for eye-catching signs and creative classroom or office displays.
What matters in day-to-day use is how the ink behaves. These are liquid chalk markers designed to flow smoothly on non-porous surfaces, and they’re marketed as washable/erasable on chalkboard paint markers’ typical targets like glass and windows. However, it’s not a single-purpose marker either—on porous surfaces (for example wood), the description says they can become permanent. That “erasable vs permanent depending on surface” bit is worth paying attention to before you commit.
Key takeaways

You get a reversible 6mm tip design, so each pen can switch between a bullet and a chisel-style edge. That’s a practical feature if you’re writing small headings one minute and bold lettering the next. The caps are described as tight-sealing to help keep the ink fresh between sessions.
Also, it’s positioned as a water-based, non-toxic and dustless alternative to traditional chalk—so it should suit home, school and office use where you want colour without the powdery aftermath. That said, if you’re expecting the same performance on every possible surface, be realistic: the behaviour depends on whether the surface is porous or non-porous, and results can vary with how smooth or absorbent it is.
What stands out in use


The biggest thing you’ll notice with this style of marker is how it lays down colour. The description says the liquid chalk paint formula flows smoothly on non-porous surfaces, which is exactly what you want for things like window displays, menu boards, and mirror/glass markers.

For a concrete example: imagine you’re making a classroom “today’s activities” board. You can use the bullet tip for neat labels and then flip to the chisel side for thicker titles. Because the ink is described as dry & wet erase on suitable non-porous areas, you can tweak wording without feeling like you’re committing permanently to every mistake.
Where it also tends to be useful is signage that gets updated. The set is described as erasable on chalkboard paint-like surfaces and on things like window and glass markers—so if your display changes regularly (events, weekly offers, seasonal reminders), the “update and wipe” angle is the point.
Where it shines (and where it may fall short)
This is a solid pick if you want vibrant colour variety in one go, plus the flexibility of reversible tips for lettering styles. It’s aimed at teachers, artists and office users, but it’s also the kind of thing households pick up for party signs, window decoration, and milestone boards.

It may not be the best match if you need truly permanent markings on porous materials. The description specifically notes that it becomes permanent on porous surfaces like wood—so if your plan is frequent rewriting on those types of materials, you may find yourself wanting a different approach.
And a practical limitation: the set is described for non-porous surfaces as erasable. If your surface is rough, absorbent, or hard to categorise, you’ll want to test first. Otherwise, you could end up with marks that don’t lift as easily as you’d hope.


Tech specs
- Type: Liquid chalk pens for blackboard and non-porous surfaces
- Format: 20-colour set (neon, pastel/vintage tones, metallic silver and gold)
- Tip design: 6mm reversible tip (bullet & chisel)
- Formula: Water-based, non-toxic, dustless and washable as described
- Erasing behaviour: Erasable/dry & wet erase on non-porous surfaces, becomes permanent on porous surfaces like wood

Is it worth it?
Worth considering if you want a colourful, dust-free “chalk look” for blackboards, windows, glass and similar smooth/non-porous areas—and you value the ability to erase and update without heavy scrubbing. The reversible 6mm tip and the mix of neon/pastel/metallic colours are the sort of details that make a difference when you’re actually making displays.
You may want to skip it if you’re mainly working on porous materials and need markings to stay erasable, or if you’re looking for a single, always-consistent behaviour across every surface type. In that case, it’s better to narrow down what surface you’re using most often and whether you truly need erasable or permanent results.
Mini FAQ

Are these chalk pens suitable for kids?


The description says they’re non-toxic and dustless, so they’re marketed as kid-friendly for chalkboard-style activities.
Do they work on glass and windows?
Yes—these are described as suitable as glass markers and window markers, with erasable behaviour on the relevant surfaces.

Can you erase them straight away?
On non-porous surfaces, the description mentions dry & wet erase. If the surface is porous, it says the marker becomes permanent.
Do the colours include metallic shades?
Yes. The set includes metallic silver and gold, alongside neon and pastel/vintage tones.
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