... to skin 2. 4g Ink inside it ,with 3mm round nib, FM450 Chisel nib size : 6mm, pen size: L13.7cm * W1. ... inside it ,with 5mm round nib 8g Ink inside it ,with 6mm parallel nib 8g Ink inside it ,with ... 8mm parallel nib 15g Ink inside it ,with ... 10mm parallel nib 28g Ink inside it ,with ...