Pentel EnerGel 3 Multi Colour Rollerball Pen 0.5mm Black Barrel Pk 12

Amazon Marketplace

3 EnerGel ink color tips (black, red & blue) in one pen High-performance ink technology combines the best qualities of liquid and gel inks for a super-smooth writing experience Maximum comfort and control with latex free grip 0.5mm needle tip writes fine lines Refill - LRN5H

Euroffice

Retractable rollerball pen for everyday writing. Refillable pen with 3 colours in 1. Quick drying EnerGel ink reduces smudging on hands and paper. Metal Pocket clip for practicality. Fine 0.5mm needle point tip.