Uni-ball Uni-ball ZENTO Signature Model Uni-ball ZENTO Black 1 pen Soft water-based ballpoint pen, for a comfortable moment of "writing." Equipped with the newly developed ZENTO ink. The moment you click and pull the magnetic cap from the pen body is a moment to pause before "writing." When you insert the cap in reverse, the shape is completed to maximize the soft writing feel. If you are concerned about scratches or scuffs on the outer box, please refrain from purchasing. uniball ZENTO Signature Model Uni-ball ZENTO Signature Model Black 1 pen