What you get: Package contains 50 pieces of blue replaceable pen refills, each measures 3.9 inch / 9.9 cm in length, 1.0 mm medium point for smooth writing; A large quantity of pen refills is sufficient for daily use; You can share them with classmates and colleagues. Wide applications: The medium point metal refill is suitable for various scenarios, such as office, business, classroom, shops, school, and home; It can also be given as a gift to friends, family, children, and students. Quality material: The outer shell of the retractable pen refill is made of durable metal, and the inner ink is high-quality, providing vibrant color and consistent flow, ensuring reliable performance and smooth writing or drawing on paper. Convenient to use: The ballpoint pen refill is portable and practical, easy to carry, and designed to prevent ink leakage; Its compact size allows for easy storage in pockets, making it ideal for travel and business trips. Nice performance: The replaceable blue ink refills feature a 1.0 mm tip, enabling smooth and effortless writing or drawing of fine lines on paper; These refills are compatible with retractable pens, easy to replace, and help reduce waste, saving time on selecting other pens. Color: Blue Material: Metal Package Contents: 50 x Blue replaceable pen refills Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.