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Home / Ballpoint Pens / Japan Uni Mitsubishi Ballpoint Pen SA-S Classic Bullet Tip: Multi-Color Student and Office Writing, Smooth Oil-Based Atomic Pen, 0.7mm Minimalist Transparent Japanese Style for Exams
Ballpoint Pens

Attributes

Brand -
Category Stationery, Educational Electronics & Office Supplies / Ballpoint Pens
Origin -
Brand Uni Mitsubishi
Model Number SA-S Classic
Tip Size 0.7mm
Ink Type Oil-based Atomic Ink
Tip Style Bullet Point
Body Material Transparent Plastic
Ink Colors Multi-Color (Black, Blue, Red)
Design Origin Japan
Ideal Use Case Exams, Office, Student Notes
Grip Type Smooth Minimalist Barrel

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 4/5

Good grip, nice weight

Very comfortable to hold for long writing sessions. The transparent barrel looks clean and professional. Deducting one star only because the cap can be a bit tight sometimes.

A

Anonymous

Mar 22, 2026

Rating: 5/5

Office staple

Bought a box for our office team. Everyone loves the minimalist Japanese design and the reliability of the Uni brand. No more jammed pens during meetings.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect for exam color-coding

I bought these for my university finals to color-code my notes. The ink flows incredibly smoothly without skipping, and the transparent body lets me see exactly how much ink is left. Highly recommend for students.

A

Anonymous

Mar 10, 2026

Rating: 4/5

Great value, classic design

These pens remind me of the ones I used in school years ago but with better ink quality. The 0.7mm tip is perfect for everyday writing. Only wish they came in a larger pack.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Best budget pen available

You get premium Japanese quality at a very affordable price. The colors are vibrant, especially the red and blue. Will definitely purchase again.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Smoothest oil-based ink ever

The atomic ink formula is no joke. It writes effortlessly on various paper types without bleeding through. The multi-color feature saves so much space in my pencil case.

5 FAQ

Q: Can I use this for left-handed writing?

A: Yes, the quick-drying oil-based ink formula is excellent for left-handed writers as it minimizes smudging.

Q: Is the ink waterproof?

A: The oil-based atomic ink is water-resistant and smear-proof once dry, making it suitable for important documents and exams.

Q: Does this pen come with refills included?

A: This specific model is typically sold as a complete pen unit. Refills are available separately under compatible Uni refill codes.

Q: What is the exact length of the pen?

A: The pen measures approximately 14.5 cm in length when capped, offering a balanced feel for most hand sizes.

Q: Are the colors interchangeable in one pen body?

A: No, the SA-S Classic is a single-color per unit pen. However, you can purchase a set containing different ink colors.

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