The Design 01 is the slimmest member of Otto Hutt's family of design-led luxury pens. The streamlined profile, and combination of resin with sterling silver helps create a more lightweight pen. The addition of resin also makes the Design 01 the most affordable range by Otto Hut, providing an injection of colour including a very handsome racing green. All pens comes with a blue ink refill, whilst pencils take 0.7mm leads. Fountain pens are available in nib sizes from fine to broad (see nib size guide).