Pentel EnerGel BL2007 - reatractable gel ink rollerball - refillable - meduim point (0,7mm)

EnerGel® Style liquid gel pen features a sophisticated and professional design for those who want to make an elegant statement.
Durable, twist-action mechanism smoothly retracts pen tip
High-performance ink technology combines the best qualities of liquid and gel inks for a super-smooth writing experience
0,7mm metal tip
refill: LR7