Uni-ball Deluxe Rollerball Pen, Extra Fine, Waterproof Pigment, Smooth Flow, Classic Barrel, Ideal for Office Writing - Blue

Key specs: ink type is pigment-based for water resistance; tip size 0.7 mm (blue); cap-based rollerball design with a rounded, comfortable barrel; optimized for steady ink flow and legibility on standard paper.

A 0.7 mm line provides a clear, legible stroke that remains readable at a glance on forms and contracts, helping your handwriting stay neat and professional.

The flow regulator helps maintain a consistent ink output, reducing skips and ensuring smooth, even lines from start to finish.

Yes. The pigment-based ink is designed to be water-resistant and quick-drying, which helps maintain legibility after handling and reduces smudging in typical office use.

Yes. It features a rounded barrel designed for comfortable handling, allowing steady control during extended writing tasks like note-taking, reports, or contracts.

For a different feel or purpose, you might compare with: Uni-ball Vision Elite Rollerball (0.5 mm) for finer lines: https://fepy.com/product/uniball-vision-elite-rollerball-0-5mm-blue; Uni-ball JetStream Rollerball (0.7 mm) for a very smooth flow: https://fepy.com/product/uniball-jetstream-rollerball-0-7mm-blue; Uni-ball Signo Gel Pen (0.7 mm) for gel ink options: https://fepy.com/product/uniball-signo-um-151-gel-pen-0-7-blue.

This pen is well-suited for filling out forms, signing documents, taking business notes, drafting quick memos, and everyday office writing where a clean, legible blue line is preferred.

Uncap when you’re ready to write, use medium pressure for smooth ink flow, and recap after use to prevent the nib from drying. Store in a cool, dry place and avoid rough handling to preserve the nib and ink consistency.

Yes. The ink is formulated to be non-toxic and suitable for typical office use, conforming to common safety standards for writing instruments.

Ink usage varies with writing style and duration, but the pen is designed for reliable, everyday office writing with steady ink flow. If you notice skip or fading, it may be time to replace or refill depending on the model.

Keep the cap on when not in use, store upright or horizontally in a cool, dry place, and avoid exposing the pen to direct heat or extreme temperatures to preserve ink quality and nib integrity.