OSOffice Supplies Guide UK

UK office product comparison

Best Office Fineliner and Felt Tip Pens
for 2026.

This comparison is built around tip size, colours, ink type and pack quantity. The five selected products are not described as tested results, but their catalogue wording gives useful starting points for a buying decision.

Prices, stock, delivery and final specifications should be checked on the retailer page.

How this page works. Five relevant catalogue products are compared, and every card uses the other four as its reference point. The copy is based on listed product information, not hands-on testing.

Best starting point

Pentel Sign Pen Fibre Tip Blue (Pack of 12) S520-C

This is the first option to inspect when blue is central to the job.

View product

Compare the options

Our picks compared

All five products are shown here. The table keeps the useful catalogue cues together, while the cards explain how each pick differs from the other four.

ProductRetailer categoryTitle cues
Pentel Sign Pen Fibre Tip Blue (Pack of 12) S520-CFineliner & Felt Tip Penspack of 12, blue
Pentel Sign Pen Fibre Tip Green (Pack of 12) S520-DFineliner & Felt Tip Penspack of 12
Pentel Sign Pen Fibre Tip Red S520-BFineliner & Felt Tip Pensred
Stabilo Trio A-Z Felt Tip Colour Pens Classpack Gratnell Tray Assorted (Pack of 144) F378/144-04Fineliner & Felt Tip Penspack of 144
Staedtler Noris 307 Writing Pen Black (Pack of 50) 307-9 CT50Fineliner & Felt Tip Penspack of 50, black

Product notes

Five different buying angles

Best blue cue

Pentel Sign Pen Fibre Tip Blue (Pack of 12) S520-C

Choose this over Pentel Sign Pen Fibre Tip Green (Pack of… when the blue cue fits your brief.

This listing reads differently because blue is the clearest cue in its name.

What we don't like

  • Blue is title-level detail only.
  • Less red detail than Pentel Sign Pen Fibre Tip Red S520-B.
ProductPentel Sign Pen Fibre Tip Blue (Pack of 12) S520-C
Retailer categoryFineliner & Felt Tip Pens
Title cuespack of 12, blue
Comparison positionPick 1 of 5. Four alternatives are compared in the bullets.
View product at Office Monster

Best defined tip size option

Pentel Sign Pen Fibre Tip Green (Pack of 12) S520-D

Choose this over Pentel Sign Pen Fibre Tip Red S520-B when the tip size cue fits your brief.

This listing reads differently because tip size is the clearest cue in its name.

What we don't like

  • No clear edge over Staedtler Noris 307 Writing Pen Black….
  • Less pack of 50 detail than Staedtler Noris 307 Writing Pen Black….
ProductPentel Sign Pen Fibre Tip Green (Pack of 12) S520-D
Retailer categoryFineliner & Felt Tip Pens
Title cuespack of 12
Comparison positionPick 2 of 5. Four alternatives are compared in the bullets.
View product at Office Monster

A clear red pick

Pentel Sign Pen Fibre Tip Red S520-B

A practical place to start if red decides the fit.

Its place in this five-product set comes from the red wording, not hands-on testing.

What we don't like

  • Red is title-level detail only.
  • Less pack of 12 detail than Pentel Sign Pen Fibre Tip Blue (Pack of….
ProductPentel Sign Pen Fibre Tip Red S520-B
Retailer categoryFineliner & Felt Tip Pens
Title cuesred
Comparison positionPick 3 of 5. Four alternatives are compared in the bullets.
View product at Office Monster

Best fit for pack of 144

Stabilo Trio A-Z Felt Tip Colour Pens Classpack Gratnell Tray Assorted (Pack of 144) F378/144-04

This option earns attention for its pack of 144 wording.

The catalogue makes pack of 144 the clearest angle, unlike Pentel Sign Pen Fibre Tip Red S520-B.

What we don't like

  • pack of 144 is title-level detail only.
  • Less red detail than Pentel Sign Pen Fibre Tip Red S520-B.
ProductStabilo Trio A-Z Felt Tip Colour Pens Classpack Gratnell Tray Assorted (Pack of 144) F378/144-04
Retailer categoryFineliner & Felt Tip Pens
Title cuespack of 144
Comparison positionPick 4 of 5. Four alternatives are compared in the bullets.
View product at Office Monster

The pack of 50 alternative

Staedtler Noris 307 Writing Pen Black (Pack of 50) 307-9 CT50

Choose this over Pentel Sign Pen Fibre Tip Blue (Pack of… when the pack of 50 cue fits your brief.

Against the other four, ask whether pack of 50 should lead the choice over Pentel Sign Pen Fibre Tip Green (Pack of….

What we don't like

  • pack of 50 is title-level detail only.
  • Less pack of 12 detail than Pentel Sign Pen Fibre Tip Green (Pack of….
ProductStaedtler Noris 307 Writing Pen Black (Pack of 50) 307-9 CT50
Retailer categoryFineliner & Felt Tip Pens
Title cuespack of 50, black
Comparison positionPick 5 of 5. Four alternatives are compared in the bullets.
View product at Office Monster

Buying checks

What to check before ordering

Compare tip size, colours, ink type and pack quantity. Then confirm the exact variant, delivery access, assembly requirements, returns terms and quantity on the retailer page.