Uni-ball Signo 307 Gel Ink Ballpoint Pen 0.38mm/0.5mm/0.7mm
Tip: Stainless Steel
Ball: 0.7mm/0.5mm/0.38mm Tungsten Carbide Ball
Barrel: Plastic (PC) & Elastic Rubber
Ink Color: 3 Colours (Black, Red, Blue)
Ink Refill: UMR-87E/ UMR-85E/UMR-83E
**Every 12 pcs of the same variation will be in 1 box**
√ The Uni-ball Signo 307 Rollerball is a gel pen that is retractable which prevents the nib from drying out and allows leak-free storage.
√ The ink it uses is Uni Super Ink that makes it waterproof, fraud resistant and permanent perfect for legal documents or for scrapbooking.
√ It’s rubberised grip makes it comfortable to use for long periods, and it’s newly developed nib makes it perfect for long essays, if you are a student the Signo 307 is a must.
Smooth writing that doesn't blur even when writing at high speed
We are the first in the world to put cellulose nanofiber to practical use, achieving a smooth writing experience that does not blur even when writing at high speed. (Ball diameter: 0.38mm/0.5mm/0.7mm)
It doesn't fade even when writing quickly.
- The viscosity changes appropriately during writing and can withstand fast writing, so the lines do not fade.
Less likely to cause ink stagnation
- Since the viscosity decreases when writing, the ink adheres firmly to the paper surface, making it difficult for ink to remain on the pen tip and forming ink pools.
High-quality carbon pattern design perfect for office use
Does not smudge even when wet with water
- Since it is a pigment ink, it has excellent water resistance and light resistance, resists fading due to light, and does not smear in water.
What is the next generation material “cellulose nanofiber”?
- Cellulose nanofiber is "Japan's first new material" that has been attracting worldwide attention in recent years. It is a new plant-derived material made by finely loosening the same pulp used in paper and other materials down to nano-sized particles, and research and application development is being promoted as part of the "Japan Revitalization Strategy" to turn forestry into a growth industry. By disentangling it finely, a fine-grained transparent gel is obtained, which is easy to flow out evenly and smoothly even from the small gaps in the nib of a ballpoint pen, and whose viscosity changes appropriately under various writing situations, resulting in a smooth gel that goes beyond conventional wisdom. You can get a nice writing feel.