10pcs Standard Blue 1MM Nib Ball Point Pen Refillsbrand new and These refills fit most of twist ballpoint pens and size can be generic, writing smooth, smooth Metal 424Size: Length: approx. 98 mm/3.86" rough: about 6 mm/0.24" written: about 2.5 mm/0.01"Point: 1.0 mm Color: BlueStandard: International standardQuantity: 1 Bag/10 PcsNote:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-2mm measuring deviation due to manual measurement.