The barrel has a modern design with a rubberised grip, allowing for comfortable writing. The ultra-fine 0.38mm and micro 0.5mm pen contains a new formula gel ink that allows smoother writing and extra fine lines while keeping the vivid and crisp colour and uni Super Ink properties. The newly designed tip reduces frictional resistance, providing a smooth writing experience. uni-ball Signo RT1 is available in 8 vibrant colours that feature a semi-transparent barrel that matches the ink colour and a rubberised grip to enhance writing comfort. Delivers smooth, skip-free writing performance Ideal for keeping handy to complete your everyday writing A favourite of avid gel pen users Smooth writing to the last drop of ink Rubberised grip for superior comfort and control Stainless steel tip Retractable pen protects the tip from damage when not in use Features innovative Super Ink that protects against water, fading, and fraud Specification: Product code : UMN-155-038 Tip size : ULTRA FINE 0.38mm Colours : Black, Blue, Red, Green, Light blue, Pink, Violet, Blue/black UNI SUPER INK uni Super Ink pigment ink has superior water resistance, so once it dries, the ink will not smear even if you spill water on the page. It also has light resistance and it will not fade under when exposed to light. Mitsubishi Pencil’s pigment ink is ideal for keepsake papers or on legal documents. Important information or legal documents can’t be changed and your signature can’t be removed. Complies with ISO 14145-2, the international standard governing the quality and performance of rollerball pens for use on official documents. In 1979 they manufactured the world's first rollerball pen incorporating a metal tip and their advances in research and development continue today. Mitsubishi Pencil has been represented in Australia by JA Davey Pty Ltd since 1982 and on 1 January 1999, a joint venture company was formed by the two businesses - Mitsubishi Pencil Australia Pty Ltd.