ENERGEL RTX LIQUID GEL PENThe EnerGel family of liquid gel pens offers a variety of choices from retractable to capped, fine point to bold, several barrel styles, and a wide selection of vibrant ink colors. With so many options, you're sure to find an EnerGel pen that matches your style. EnerGel RTX pens come with either black, red, blue, green, pink, sky blue or violet ink. However, they can be refilled with any EnerGel refill available in a variety of other vibrant colors to match your mood and keep your writing instrument unique to you.QUICK DRYING INKEnerGel ink dries super fast, which is why left-handed writers love EnerGel -- No Smears, No Smudges, No Globs.HIGH-TECH SMOOTHNESSEnerGel liquid gel ink is a high-performance ink technology that combines the best qualities of liquid and gel ink for a super-smooth writing experience. Liquid ink characteristics provide an easy flowing ink supply, while gel ink characteristics include smoothness of writing, vibrant colors and fast-drying capability.REFILLABLEDon't toss out your pens! Did you know that over 90% of EnerGel products are refillable? Why throw away your pen and contribute to landfills when you can replace your depleted ink cartridge with any size and/or color EnerGel refill. Help the environment while saving money!Pentel Cares About QualityFor over 70 years, Pentel has supplied the world with the highest quality products. We are a leader in innovation with a commitment to excellence. Pentel is the only writing instrument company to receive the Deming Award* for recognition of the highest standard of quality.