● Smooth Writing: These pen refills are crafted with 0.7mm ball tip, providing a smooth writing experience in black, red, and blue ink. ● Great Value: With 100 pen refills, this value set provides extended use to save you money and time. ● Quality Craftsmanship: Made with high-quality materials, these pen refills are durable and reliable for daily use. ● Widely Applicable: Perfect for school, office, or personal use, these pen refills give you the flexibility to choose your favorite colors. ● Easy to Replace: The pen refills fit most standard pens, making them easy to replace and maintain.