The LRP7 refill is part of Pentel’s LR family of gel ink refills with one big difference: it uses permanent ink. This is the same refill as the Energel LR7 aside from the move from a normal dye-based liquid gel ink to a permanent ink that is pigment-based and highly water-resistant.
This is the refill you would find in the Pentel Energel Pro permanent gel ink pen.
The LRP7 is the 0.7 mm variety of this refill. It’s also sold in 0.5 mm which is known as the LRP5 liquid gel refill.
Pentel EnerGel LRP7 Permanent Gel Pen Refill Information
|Rollerball / Gel
|Blue, Black, Red
|Max Body Width
|Refill Length (cm)