TWSBI Diamond 580ALR Sunset Yellow Fountain Pen - Clear body with Yellow trim - 1.1mm Italic (stub) NibA warm burst of colour The TWSBI Diamond 580ALR Sunset Yellow Fountain Pen brings a bright, optimistic tone to the trusted 580 platform. A crystal clear demonstrator body keeps ink at the centre of the experience, while sunset yellow aluminium trim adds warmth and visibility without overwhelming the design. Built on the reliable 580ALR system, it combines high ink capacity, smooth writing performance, and a refined grip for daily use. What sets it