The Pack of 12 uni-ball Signo Gelsticks are great value and great quality gel ink pens. Sharpie\'s wide range of vibrant ink colours makes them perfect for school, work and home. The Signo Gelstick also contains uni Super Ink, which is fade resistant, water resistant and tamper proof. . Medium (0.7mm) line. Specially shaped comfort grip for effortless writing and control. Contains uni Super Ink; fade resistant, water resistant and tamper proof. Wide range of vibrant ink colours available. Great value. Pack of 12