Uni-ball ZENTO Signature Semi-Metal Gel Pen | Black Ink | 0.38 / 0.5 / 0.7mm

Uni-ball ZENTO Signature Semi-Metal Gel Pen

Crafted by Mitsubishi Pencil (uni) — Japan's most trusted writing instrument brand — the ZENTO Signature redefines everyday writing with a magnetic snap cap, semi-metal barrel, and ultra-smooth gel ink. Whether you're signing contracts, journaling, or annotating documents, the ZENTO delivers a confident, fluid line every time.

Key Features

• Magnetic Snap Cap — One-handed capping and uncapping; cap stays secure without clicking
• Semi-Metal Barrel — Weighted, premium feel with a refined matte finish
• Ultra-Smooth Black Gel Ink — Water-resistant, fade-resistant, and quick-drying
• Three Nib Options — 0.38mm (extra fine) / 0.5mm (fine) / 0.7mm (medium)
• Ergonomic Grip Zone — Reduces fatigue during extended writing sessions
• Refillable Design — Compatible with standard uni-ball ZENTO refill cartridges

Specifications

• Brand: Mitsubishi Pencil / uni
• Model: ZENTO Signature
• Ink Color: Black
• Tip Size: 0.38mm / 0.5mm / 0.7mm (select variant)
• Ink Type: Water-based gel
• Cap Mechanism: Magnetic
• Barrel Material: Semi-metal
• Origin: Japan

Who Is This For?

The ZENTO Signature is the pen for those who believe the instrument matters as much as the words. Professionals, students, and stationery enthusiasts who demand precision, durability, and a touch of elegance in their daily carry.

Frequently Asked Questions

Q: What is the difference between the 0.38mm, 0.5mm, and 0.7mm variants?

A: The 0.38mm produces an extra-fine line — ideal for detailed notes, small handwriting, or dense text. The 0.5mm is the most versatile everyday size, balancing precision and ink flow. The 0.7mm delivers a bolder, smoother stroke suited for signatures and expressive writing.

Q: Is the ink waterproof or fade-resistant?

A: Yes. The ZENTO uses water-based gel ink that is highly water-resistant and formulated to resist fading over time, making it suitable for archival documents and important records.

Q: How does the magnetic cap work?

A: The cap uses a built-in magnet that snaps securely onto the barrel tip with a satisfying click — no twisting required. It can also be posted (attached to the back of the pen) magnetically for balanced writing.

Q: Is the ZENTO Signature refillable?

A: Yes. The pen is compatible with standard uni-ball ZENTO gel ink refill cartridges, making it a sustainable long-term writing investment.

Q: Is this pen suitable for left-handed writers?

A: Absolutely. The quick-drying gel ink minimizes smearing, making the ZENTO a great choice for left-handed writers.

Q: What paper types work best with this pen?

A: The ZENTO performs beautifully on smooth, coated papers (e.g., Rhodia, Clairefontaine, Tomoe River) and standard office paper. On highly textured or absorbent paper, the 0.5mm or 0.7mm tip is recommended for optimal ink flow.