Sanford 207 impact gel rollerball pen, refillable, 1.0mm, red ink 207 impact pen delivers an ultra-smooth ink flow from a 1.0mm tip. Uni super ink prevents check and document fraud and is acid-free. Contemporary barrel design features an extra-control rubber grip for comfort and control in writing. Barrel reveals the ink supply so you know when to refill the gel pen. Acid-free ink. larger quantity quotes available. Please call 1-888-978-7759. this product arrives to most customers in 2-3 business days.