uni Signo Uni-ball Signo UMR-5 Gel Ink Ballpoint Pen Refill For Capped Pens 0.5mm Refill Set of 3 Red New and unopened, but stored at home. Thank you for your understanding. [High-Quality Ink] uni's Signo UMR-5 uses high-quality ink for a smooth writing experience. The fine 0.5mm tip is especially ideal for precise writing. [Compatibility] This refill is compatible with uni's UM-100 and GP-UM-115 ballpoint pens, allowing you to easily upgrade your existing pens. [Convenient Set of 3] Sold as a set of 3, these refills offer long-term use and excellent cost performance. They are perfect for everyday writing tasks. - Brand: uni - Model: Signo UMR-5 - Type: Ballpoint Pen Refill - Size: 0.5mm - Color: Red - Quantity: Set of 3 Thank you for looking.