Barrel window shows how much ink is left Waterproof and fade-resistant liquid pigment ink Nib of 0.5mm produces line width of 0.2mm
uni-ball Eye Micro UB-150 - uni-ball
Uni-Ball Eye Micro Rollerball Pen Black
Uni-Ball UB-150 Eye Ultra Micro Roller-ball Gel Pen 0.5mm / 0.38mm (Select)
Black x 2,Blue x 2,Red x 2 Uni-Ball eye UB-150-0.38mm roller ball pen(Made Japan
Uni-Ball Micro Air Rollerball Pen - Black (Pack Of 12)
Vision, Rollerball Pens
Uni Punchmitsubishi Uni-ball Ub-150 0.5mm Gel Pen - Black/blue/red, Non-erasable
1 Piece Classic Good Pen Mitsubishi Uni-ball Eye Micro Gel Ink Pen 0.5mm Black/blue/red Ub-150 - Gel Pens - AliExpress
uni ball Deluxe Rollerball Pens Fine Point 0.7 mm Gold Barrel Blue Ink Pack Of 12 - Office Depot
Uni-Ball UB-150 Eye Ultra Micro Roller-ball Gel Pen 0.5mm / 0.38mm (Select)
Uni-Ball Eye Rollerball Pen Micro UB-150, 0.5 mm, 10 pcs. High Quality Brand, Office Writing Supplies (Color Optional) - AliExpress