Pentel EnerGel X is the latest member of the EnerGel family. EnerGel X is a quick-drying, smooth-writing gel ink retractable pen with an easy-hold rubber grip and see-through barrel giving a visible ink supply on the easy-change refill. Refillable with LR7 refill. Pentel RECYCOLOGY Pen - contains 84% recycled materials by weight, excluding ink and refill. This Red ink BL107 Energel-X Retractable Roller Ball Gel pen is for everyday use. It incorporates a generous smooth rubber grip for added comfort and an attractive plastic barrel in the matching colour to the ink inside. It is a 0.7mm tip which gives approximately a 0.35mm line width when writing. It is a low viscosity liquid gel ink allowing a smooth flowing and quicker drying ink than normal gel ink. Because the ink dries quickly it is especially suitable for left handed writers. This is a perfect pen for Office School or home.