Retractable pens feature a quick-dry gel ink that helps prevent smudging to ensure your writing stays clean & legible. 0.7mm tip provides consistently smooth writing performance for crisp, neat results whether you're writing a quick note or a lengthy paragraph. Plus, a plastic clip allows you to conveniently attach the pen to pockets, notepads, binders & more for quick storage & retrieval. Retractable pens with red ink are perfect for business professionals, students, teachers & more.