Tikky Graphic, rOtring's unique fineliner! Free Ink technology is a perfect example of rOtring's innovative force. Our Free Ink writing instruments have clear advantages. The ink feed module gives a free yet controlled flow of ink from the reservoir onto the paper, eliminating the need for a conventional ink storage plug. This makes it possible to use 100% of the ink contents, down to the last drop. Free Ink is efficient but it's also carefree.