The Tixx disposable pen line is economical yet features excellent quality black, blue and color gel inks for a long writing life. The fountain pen (1 per card) is a wonder: a fine writing instrument without a messy cartridge to change. The hybrid gel/ink ballpoint/rollerball pens (3 per card) flows smoothly across any writing paper and the needlepoint roller ball pens (3 per card) creates a very fine, precise line.