Lumocolor permanent markers feature dry-safe ink that lets them be left uncapped for days without drying up. When left open during breaks in writing, they remain ready for action without delay. Lightfast, color-intensive ink is waterproof and smudgeproof on almost all surfaces. Neutral-smelling, xylene-free ink dries in seconds, so permanent markers are ideal for left-handers as well as right-handers. Their chisel tips remain locked in place and cannot be pushed back into barrels, even with extremely heavy writing pressure.