<p><span></span>The Uni-ball one applies the newly developed "Uni-ball One" ink. The pigment in "Uni-ball One" ink minimizes the penetration of the ink into paper fibre. As a result, it develops original colours on paper, showing a darker black than an ordinary black ink pen, and showing more vivid colours than other coloured ink pens.<span><span><br></span></span></p> <p><span><span><span>The barrel design is stylish and simple. It features a metal</span><span> oval-shaped clip that can be easily clipped on your notebook or pocket. The joint part of the clip matches its ink colours.</span></span></span></p> <p><span><span><span>According to research by Ritsumeikan University in Japan, it shows that the darker and sharper the letters in black, the easier it is to remember. So the Uni-ball one gel pen in black ink might become your best tool when studying.</span></span></span></p> <p><strong>Compatible Refills:</strong></p> <p><a href="https://www.bunbougu.com.au/products/uni-umr-38s-gel-pen-refill-for-uni-one-gel-pen-black-0-38-mm" title="Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Black - 0.38 mm">Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Black - 0.38 mm</a></p> <p><a href="https://www.bunbougu.com.au/products/uni-umr-38s-gel-pen-refill-for-uni-one-gel-pen-blue-black-0-38-mm">Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Blue Black - 0.38 mm</a></p> <p><a href="https://www.bunbougu.com.au/products/uni-umr-38s-gel-pen-refill-for-uni-one-gel-pen-blue-0-38-mm" title="Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Blue - 0.38 mm">Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Blue - 0.38 mm</a></p> <p><a href="https://www.bunbougu.com.au/products/uni-umr-38s-gel-pen-refill-for-uni-one-gel-pen-red-0-38-mm" title="Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Red - 0.38 mm">Uni UMR-38S Gel Pen Refill for Uni One Gel Pen - Red - 0.38 mm</a></p> <p> </p>