Our 0.7mm black ballpoint pen refills are ideal for professionals who require smooth and consistent writing. These replacement pen refills are designed to fit seamlessly into your favorite press-type ballpoint pens, ensuring that you never run out of ink during important meetings or note-taking sessions. Ideal for office supplies, these refills provide a reliable and practical solution for all your writing needs. Features -Color:Black -Material:Refill -Size:10.00X0.20X0.20cm/3.93X0.08X0.08in -Smooth writing: the fine tip of the pen refill provides a smooth writing experience, allowing for effortless and precise handwriting -Easy replacement: the pen refills are easy to replace, making the process simple and convenient for users, saving time and effort -Consistent ink flow: enjoy a smooth and uninterrupted writing experience with ink that flows consistently, reducing the need for frequent adjustments -Universal fit: compatible with a wide range of retractable ballpoint pens, these refills offer a versatile solution for various writing instruments -Quick drying formula: the quick drying ink prevents smudging, keeping your writing clean looking Package list: 400 x ballpoint pen refills