 Uni-ball's writing implements brands include "Jetstream" (hybrid-ink ballpoint pens), "Vision", "Air" (rollerball pens), "Signo" (pigment ink gel pens), "Onyx", "Kuru Toga" (mechanical pencils), "Paint", "Posca", "Chalk", and "Prockey" (marker pens).Wood-cased pencil brands include "Hi-Uni", "Uni" and "Mitsu-Bishi".Some other pen lines (mainly intended for the Japanese market) are "Power Tank" (pressurised ink cartridge), "Eye" (roller ball), "R