Uni-ball Signo Broad Gel Pen

Make Your Mark in White, Gold, and Silver.

Introducing the Uni-ball Signo Broad Gel Pen—Japan's most trusted opaque gel pen for writing on dark, black, and colored surfaces. Available in three premium metallic and opaque colors, it delivers bold, consistent pigment ink lines that pop brilliantly on black card, kraft paper, and dark fabric.

Featuring a 1.0mm broad tip with Uni's dual tungsten carbide rolling ball design, it ensures smooth flow with zero leakage or blobbing. Whether you are signing a wedding guest book, highlighting illustrations, or practicing hand lettering, the Signo UM-153 is the perfect creative tool.

✦ Key Features

• Opaque pigment ink — fully opaque, water-resistant, and fade-resistant
• Writes on dark surfaces — pops brilliantly on black paper and dark fabric
• 1.0mm dual ballpoint tip — ensures smooth flow and prevents leakage
• Anti-slip rubber grip — provides comfortable control during extended use
• Made in Japan — engineered for artists, illustrators, and calligraphers

✦ Specifications

• Tip Size: 1.0mm (Broad)
• Ink Colors: White, Gold, Silver
• Mechanism: Capped
• Brand: Uni-ball

Frequently Asked Questions

Q: Does the ink show up clearly on black paper?

A: Yes! The UM-153 uses professional-grade opaque pigment ink specifically designed to write brilliantly on dark, black, and colored surfaces without fading.

Q: What is a dual ballpoint tip?

A: The tip features two rolling balls: the outer ball guides the pen smoothly across the paper, while the inner ball strictly controls ink flow, preventing messy leakages and blobbing.

Q: Is this pen suitable for wedding guest books?

A: Absolutely. Its bold 1.0mm tip and opaque, fade-resistant ink make it a cult favorite for signing wedding guest books, addressing invitations, and crafting elegant hand lettering.