Parker Quinkflow Black Ink Ballpen Refill - Medium Point - Black Ink - Smooth Writing, Quick-drying Ink - 1 Each Ballpoint pen refill with black ink features a high-quality construction to provide a clean, steady writing experience. Smooth-flowing design lays down effortlessly to produce consistent, fluent lines. Easy-to-use design allows you to quickly replace your depleted pen for quick, simple use. Ink cartridge is designed for all Parker ballpoint pens (sold separately).