Opus 88 Koloro Demonstrator Hot Pink Fountain Pen Medium Nib

The Opus 88 Koloro Hot Pink fountain pen expertly blends modern industrial design with traditional writing utility, making it a standout choice for enthusiasts who appreciate both form and function. Crafted from a striking and vibrant translucent acrylic, this flat-top fountain pen offers a tactile and visually engaging writing experience. The frosted, candy-colored barrel acts as a beautiful window to your ink supply, allowing you to watch your favorite ink slosh inside while keeping a precise eye on the current ink level.

At the heart of the Koloro is its high-capacity Japanese-style eyedropper filling system, which holds a massive amount of ink to sustain even the longest writing sessions without interruption. To protect against leaks, burping, and sudden pressure changes during travel, the pen features a built-in shut-off valve operated by the knurled blind cap at the base of the barrel. Backed by a premium stainless steel nib, this pen delivers a smooth, consistent ink flow right out of the box, ensuring that its bold, playful aesthetic is matched perfectly by its reliable everyday performance.