Pentel LR7 Energel Pen Refill 0.7mm Ball Metal Tip Black Ink LR7 - All Colour
EnerGel Xm Retractable (BL77, BL77-P & BL77SW). EnerGel XM (BL57). EnerGel Sterling (BL407). Refill suitable for. Special Roller Gel Refill. Super Smooth Liquid Gel Ink. Available Colour. 0.7mm tip writes a 0.35mm line.