The Pentel™ EnerGel Alloy RT retractable liquid gel pen is an exquisitely designed writing instrument for those who want to make a statement. High performance ink technology – No Smears, No Smudges, No Globs. Distinctive, textured grip provides greater writing comfort. 0.7mm metal tip writes medium lines. Black Barrel. Pen Sub-Brand & Product Family: EnerGel™ Alloy RT; Pen Type: Gel Pen; Pen Style: Retractable; Pen Tip Type: Conical.