Mitsubishi Pencil Uni-Ball One Gel Pen Refill 0.38mm Black 10-Pack | Darker Ink for Memorable Notes

• Series: Uni-ball one
• Features: Black is darker and the colors are more vibrant, making it easy to remember and write crisp letters
• Compatible products: UMN-S-38 (uni-ball one 0.01 inch (0.38 mm)
• Lead diameter: 0.01 inches (0.38 mm); Ink color: Black
• Size: Shaft Diameter 0.2 x Thickness 0.2 x Total Length 4.4 inches (6.0 x 6.0 x 112.0 mm); Weight: 1.4 oz (42 g)

• Remove Old Refill — Unscrew the barrel of your compatible Uni-Ball One pen (model UMN-S-38). Carefully pull out the old, depleted refill from the pen's tip mechanism.
• Insert New Refill — Take one new black 0.38mm Uni-Ball One refill from the 10-pack. Align it with the pen's tip mechanism and gently push until it clicks securely into place.
• Reassemble Pen — Screw the pen barrel back onto the pen body until it is firmly attached. Your pen is now ready to write with fresh, dark, and smooth ink.

Typical situations where Mitsubishi Pencil Uni-Ball One Gel Pen Refill 0.38mm Black 10-Pack | Darker Ink for Memorable Notes helps — illustrative scenarios, not customer reviews.