Whether you're a student or a professional, these gel pen refills provide the reliability and performance you need. The black ink is for formal writing, while the smooth gel ensures a comfortable writing experience. These refills are designed to fit standard beadable pens, making them a convenient choice for everyday use. Features -Color:Black -Material:Plastic -Size:6.00X0.70X0.70cm/2.36X0.28X0.28in -Smooth gel ink: these refills provide a smooth and enjoyable writing experience with gel ink -Designed for beadable pens: specifically made for beadable pens, these refills are for writing instruments -Protective cap: each refill comes with a protective cap to keep the ink fresh and ready for use -Versatile applications: suitable for a variety of tasks including studying, office work, and artistic projects -Easy replacement: the refills are designed for easy and quick replacement, ensuring minimal downtime Package list: 50 x Beadable Pens Refills