Effortlessly express brilliant color with Spectrum Retractable Gel Pens. Even-flowing, pigment-based, gel ink delivers a smooth writing experience with intense, vibrant color. Medium point pens are useful for a variety of projects including color-coding notes & lists & embellishing fun, creative writing projects. Innovative, uni Super Ink technology creates an indelible bond with paper, producing fraud-resistant, fade-resistant & water-resistant documents. Comfortable, rubber grip ensures better comfort for extended periods of writing & creating. Translucent window indicates the level of ink remaining to avoid running out unexpectedly. Pens brighten up your writing tasks with brilliant, vivid color.