The Pilot Birdie Pen Refill Black is a genuine Pilot replacement refill designed for compatible Pilot Birdie ballpoint pens. Filled with rich black oil-based ink, it delivers smooth, consistent writing with clean, reliable lines for everyday use. Ideal for note-taking, document writing, journaling, and general office or school tasks, this genuine Pilot refill restores your Birdie pen to its original writing performance while extending its lifespan.