AMPLE SUPPLY OF REFILLS:This pack includes 6 erasable blue ink refills with a 0.7mm fine tip, providing a long - lasting supply for your writing needs. Ideal for sharing with friends or keeping well stocked at home or office COMFORTABLE AND SOFT:Our special refills allow a soft, perfect writing experience, these refills ensure a seamless writing experience COMFORTABLE AND SOFT:Our special refills allow a soft, perfect writing experience, these refills ensure a seamless writing experience CONVENIENT AND COST EFFECTIVE:Easily insert these refills into your existing pen casings for a quick and efficient replacement VERSATILE USE:Compatible with most rollerball pen casings, these refills are excellent for various applications, including homework, artwork, and general note - taking. They also make thoughtful gifts for students and professionals alike