The Pentel Energel Rtx Rt Liquid Gel Pen, Medium, Metal Tip, 0.7Mm, Black Ink, The EnerGel RTX offers a luxury feel and a smooth, effortless writing experience. High performance ink technology combines the best qualities of liquid and gel ink. Fast-drying liquid gel ink is great for left handers - no smears, no smudges, no globs. The sleek and stylish barrel design features stainless steel accents for a professional look. The latex-free grip provides extended comfort and control when writing. It is available with a 0.7mm stainless steel tip writes medium lines, 1.0mm tip writes bold lines. Refillable with any size and/or color EnerGel refill. It is backed by a Limited Lifetime Warranty. High performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience Liquid gel ink dries so fast even left handed writers love it - no smears, no smudges, no globs EnerGel ink writes more smoothly than the leading brand* (*Internally tested to be smoother writing than the leading gel pen on standard writing paper) Sleek stylish barrel design with metal accents for a professional look Latex-free grip for writing comfort and control