Exclusive uni-flow ink system regulates a steady flow of waterproof ink to the point for consistent smoothness and color intensity down to the last drop of ink Archival quality and acid-free ink for documenting and record-keeping Quick drying, water-resistant ink Stainless Steel tip

Clear barrel reveals amount of colorful ink inside. Exclusive Uni-flow ink system guarantees smooth, consistent writing. Durable, precision needlepoint performs under pressure. Offers color indicator on cap