The LRN3 is a type of Pentel Energel gel refill (known as the LR refill) in a 0.3 mm size. The LRN refills specifically refer to the needle-tip (aka needle-point) variety of the refill, with the number indicating the tip size. This is a wet gel ink refill that will fit G2 rollerball pens, including
EnerGel® Liquid Gel Pen Refill, 0.5mm NEEDLE Tip – Pentel of America, Ltd.
Pentel® Energel® 1 mm Bold Liquid Gel Pen Refill, Red Ink (LR10-B) - Yahoo Shopping
Refill for Energel (BLN75, BLN105, BLN115), 0.55mm, Red Ink, Box of 12.
Pentel Refill Ink for EnerGel Liquid Gel Pen, 0.5mm, Needle Tip, Red Ink, Box of 12 (LRN5-B-12)
Pentel LRN3BP2A 0.3mm Needle Tip Black EnerGel Refills - 2 ct
Energel Clena - Tokyo Pen Shop
Energel Individual Colors - Tokyo Pen Shop
Pentel Refill Ink for EnerGel Gel Pen, 0.5mm, Needle Tip, Green Ink, Box of 12 (LRN5-D)
Satisfy your EnerGel needs with this refill that provides quality and value. It is equipped with rich, acid-free, and archival safe ink that is non-smearing and quick-drying, guaranteeing that your documents will be archived safely. Quick-drying ink is also great for lefties as writing won't smear away with touch.
Pentel Refill Ink for EnerGel RTX Retractable Gel Pen Extra Fine Point Needle Tip,12 Count, 0.3mm, Blue (LRN3-C)
Uni-ball Signo UMR-1 Gel Pen Refill
Pentel Refill Ink for EnerGel RTX Retractable Gel Pen Extra Fine Point Needle Tip,12 Count, 0.3mm, Blue (LRN3-C)
Tip : needle tip. Super-smooth and quick-drying liquid gel ink ! Quantity : 10 pcs SET. Ink Color : Blue. Ink : gel-ink. Point : 0.3 ㎜. We do not
PENTEL JAPAN XLRN3-C LRN3 Energel Refill 0.3mm Blue ink Needle Tip #10 pcs SET
EnerGel® Liquid Gel Pen Refill, 0.5mm NEEDLE Tip – Pentel of America, Ltd.
Pentel 6pcs EnerGel LRN5 XLRN4 Needle-Point Gel Pen Refill - 0.5 mm/0.4mm Black/Blue/Red For Pentel BLN-75 - AliExpress