The Zebra bLen U is an upgraded version of the original bLen, designed for a smoother and more comfortable writing experience. It features an anti-vibration system that minimizes rattling and hand strain, ensuring steady and controlled strokes. The \”S\” oil-based ink delivers bold, dark lines effortlessly, requiring minimal pressure for a clean and consistent flow. Built for convenience, the bLen U includes a sturdy metal binder clip, making it easy to attach to notebooks, planners, or pockets. Available in various colors and tip sizes, this pen is ideal for those who want reliable performance with a sleek, ergonomic design. 0.7mm Ink: Black Also available in 0.5 mm Refill