Ballpoint pen. Pen for everyday use. Triangular shape for high writing comfort. Quick-drying ink for clean writing. Box of 20 pieces. Line width: M. Ink color: Blue. Rediscover the joy of writing with the InkJoy 100 RT ballpoint pen. Its triangular shape provides excellent writing comfort and easy handling, allowing you to focus entirely on writing. The very low viscosity of the ink and the optimized writing tip ensure smooth writing every time.