EnerGel XmRT is a gel ink rollerball pen that offers extra comfort. The pen writes wonderfully smoothly and lasts longer than conventional gel ink rollerballs. It dries in no time and is ideal for heavy writers and left-handed users. With a line width of 0.5 mm, it provides a distinct writing appearance. It features a push mechanism and a metal tip. Refillable with LR10. Color: violet. The number on the pen refers to the ball size, as it is not common in other countries to specify the line width.