This black gel pen refill is designed to meet the needs of students and professionals who require precision and reliability. The provides detailed and accurate writing, while the quick-drying ink ensures smudge-free documents. ideal for school and office use, it offers a smooth and efficient writing experience with every stroke. Features -Color:Black -Material:Plastic -Size:13.00X0.50X0.50cm/5.11X0.20X0.20in - writing: these black gel pen refills are designed to provide a writing experience, ideal for extensive use. - replacement: easily replace the refills to keep your pen in top condition without the need for a new pen. -Quickdrying and clear: the black ink dries quickly, ensuring clear and smudgefree writing for professional results. -Universal compatibility: these refills fit a variety of gel pens, offering great versatility for different writing instruments. -Suitable for multiple uses: ideal for use in schools, offices, and homes, these refills meet a wide range of writing needs. Package list: x gel pen refills