Feature:1. SMOOTH WRITING, QUICK DRYING: Quick drying ink writes smoothly without smearing, smudging, or bleeding.2. SUPER COMPATIBLE: Gel ink refills for retractable click pens. Widely compatible with a huge variety of clickable gel pens.3. DURABLE SHAFT: Made with a sturdy white plastic shaft, eliminates pressure, impact and temperature induced ink leaks.4. ENDURANCE: High ink volume supports long time use. Reduce the hassle of frequent replacement.5. VERSATILE: Whether you need to take notes, write exams, or sign important documents, this pen is versatile and suitable for various writing tasks in the classroom, office, or at home.Specification:Item Type: Gel Ink RefillMaterial: PlasticWeight: Approx. 4g / 0.1ozProduct Size: Approx. 11x1x1cm / 4.3x0.4x0.4in.Package List:2 x Gel Ink Refill