Compatible brands: 24 pack blue replaceable pen refills compatible with Cross item #8513
Standard compatible refills: refill length is 4.5 inch/ 11.6 cm, 0.04 inch/ 1 mm medium tip for smooth writing
Good quality ink: blue ink refills provide smooth writing, water resistant, quick-drying performance
Application: suitable to replace screw end of pen refill, compatible with Cross and other pens, great using for office, school and home
Note: please measure your pen refills and compare it to the item pictures and specification before you buy