Kaweco ballpoint pen ink refills are extremely smooth and dry instantly. They are a staff favourite as they produce an impressively bold, vivid line. Whilst compact, it is very long lasting and easy to insert into your Kaweco Sport pen. This refill only suits Kaweco Sport Retractable Ballpoint pens (pens WITHOUT a cap). Please note: These refills come without packaging and are very, very small! They last a long time despite their size.