OFFCUP 0.5 mm Liquid Ink Rollerball Pens, 10-Pack, Black Ink

OFFCUP liquid ink rollerball pens are listed as a 10-pack with black ink and a 0.5 mm point. The listing describes them for everyday notes and illustration, but gives conflicting descriptions of the ink base and pen type, so check the details if those distinctions matter to you.

At a glance

A pack of 10 pens is listed, with a 0.5 mm point and black ink.
The listing describes a transparent ink window and a metal clip.
Manufacturer claims include quick-drying ink and a writing length of up to 1100 metres. Those performance claims are not independently verified.

Price

€7.63Save 15%

Reference price: ~~€8.99~~

Price checked: 12 Nov 2026

View offer

Pros and cons

Pros

Ten pens in the stated pack suit buyers who want several matching black-ink pens for school, office or journalling.
The listed 0.5 mm point is suited to fine writing and detailed drawing.
The claimed ink window may help show how much ink remains.

Cons

The listed water-resistance level is Not Water Resistant, so these are not presented as suitable for wet conditions.

Technical specifications

14 specifications

Identity and design
Brand	OFFCUP
Writing instrument form	Ballpoint Pen
Ink colour	Black
Body colour	Blue
Point type	Ball
Line size	0_5mm
Grip	Soft
Hand orientation	Ambidextrous
Body shape	Cylindrical
Age range	Adult
Recommended uses	Note-taking, Sketching, Drawing, Painting, Illustration, Coloring, Travel Journal

Materials and protection
Material listed	Tungsten Carbide Metal
Water resistance listed	Not Water Resistant

Dimensions and installation
Weight listed	0.12 Kilograms

What to know before buying

Listing details to confirm

The listing is inconsistent about the pen and ink: the title calls these gel pens, rollerballs and ballpoint pens, while the details list Ballpoint Pen and the feature copy describes liquid ink. It also lists alcohol as the ink base, but the description calls the ink water-based. The 0.5 mm point is described in one place as a ballpoint nib and elsewhere as a needle or bullet tip. Confirm the selected listing's exact pen and ink details if they are important. Customer feedback also mentions ink bleed on thick cartridge paper, so test on the paper you plan to use.

What’s in the box

Included

10 pens

Who is it for?

A good fit for

People seeking a multi-pen pack for everyday black-ink notes, school or office use.
Journalers and illustrators who want a listed 0.5 mm point for finer lines.

Less suited to

People who need water-resistant writing.
Buyers who require a clearly specified ink base or guaranteed performance on thick cartridge paper.

OFFCUP 0.5 mm Liquid Ink Rollerball Pens, 10-Pack, Black Ink · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 1,185 ratings

5 stars77%77%
4 stars15%15%
3 stars5%5%
2 stars1%1%
1 star2%2%

Customer feedback describes smooth writing, good quality and durability, while reports about ink flow are mixed. Some customers also note bleeding on thick cartridge paper. That feedback makes these pens a plausible option for routine notes, but buyers using heavier paper or needing dependable flow for detailed work should try them on their own paper first. The listing's claims about quick drying and a long writing distance are product claims, not customer-feedback evidence.

Positive themes

Customers describe the pens as smooth-writing, good quality and durable.

Negative themes

Some customers report ink bleeding on thick cartridge paper. Feedback also includes concerns about smudge resistance.

Mixed feedback

Customer reports on ink flow are mixed, with some describing good flow and others reporting issues.

Frequently asked questions

How many pens are listed in the pack?

The manufacturer contents list specifies a set of 10 pens.

What ink colour and point size are listed?

The details list black ink and a line size of 0_5mm. The title also describes a 0.5 mm point.

Are these pens water-resistant?

No. The listed water-resistance level is Not Water Resistant.

What kind of ink do they use?

The listing conflicts: one detail says alcohol-based, while the product description calls it water-based. Check the selected listing if the ink base matters.