Uni-Ball 0.7mm Air Ball Pen - Black Ink

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Specification:

Name	Uni-Ball 0.7mm Air Ball Pen - Black Ink
Category	Ball Pen
Country of Origin	Japan
Quantity Per Pack	1 Pcs
Model	UBA - 188-L
Body Materials	Plastic
Refillable	Yes
Mechanism	Air Suspension
Ink Properties	Water/Fade/Tamper-Proof
Weight	11 g
Closure	Capped
Grip Type	Textured
Company	Uni-Ball
Country	বাংলাদেশ
Weight	0.02 Kg

Summary:

The Uni-ball Air UBA-188-L Rollerball Pen utilizes a pressure-sensitive 0.7mm tip to produce line widths from 0.35mm to 0.55mm. Its internal air suspension system minimizes friction for a smooth writing feel. Uni Super Ink provides a permanent bond that resists water and chemical tampering.

Key Features

Variable Line Width: Pressure controls the 0.35mm to 0.55mm stroke range. Heavier force creates thicker lines similar to a fountain pen.
Uni Super Ink: Waterproof and fade-resistant pigment-based liquid ink formulation. Writing stays permanent even in heavy sweat or humidity.
Air Suspension Mechanism: Internal cushion reduces drag between the tip and paper. This removes the scratchy sensation typical of basic ballpoints.
Tungsten Carbide Tip: 0.7mm durable ball material resists wear and ink leakage. It maintains consistent ink flow throughout the 140mm body length.
Lightweight Construction: 11g total mass with a textured grip. This reduces physical strain during long writing sessions or exams.

Frequently Asked Questions

Is Uni-ball Air 0.7mm refillable?

The UBA-188-L model features a non-refillable internal ink reservoir. You must replace the pen once the liquid ink runs out.

How does Uni-ball Air variable line width work?

Pressure against the nib flexes the plastic tip surround. This movement alters the ball's contact area to change the stroke thickness.

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Brand Information

Uni-Ball

Uni-Ball is a brand of pens from the Mitsubishi Pencil Company, which was founded in Tokyo in 1887. The brand was introduced in 1979 with the world's first rollerball pen to use a metal tip and water-based ink. Today, Uni-Ball produces a wide range of writing instruments known for innovation and quality, with popular lines including the Eye, Signo, and One series.

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