Pentel BL407AA EnerGel Alloy RT Retractable Liquid Gel Pen, .7mm, Black Barrel, Black Ink
EnerGel Alloy RT Premium Liquid Gel Pen, Medium Line, Metal Tip, Black Barrel, Black Ink Pentel Co., Ltd. is a privately held Japanese company which produces stationery products. The name is a combination of the English words pen and tell. Pentel is also the inventor of non-permanent marker technology.