Quick-drying permanent markers with fine point contain ink that won't bleed or smudge. Dry-Safe ink allows the marker to be left uncapped for days without drying up. Automatic pressure equalization prevents the pen from leaking on board aircraft. Compact permanent marker also includes a cap with a clip for attaching to notebooks, pockets & more. Write on overhead transparency film or such glossy surfaces as CDs / DVDs, photos, transparency sleeves, slide frames, cromalins, glass, acrylic & vinyl. Color-intensive, low-odor, xylene-free ink dries in seconds so the markers are ideal for left-handers. Correction pen (sold separately) accurately clears film of all Lumocolor markings. Deleted areas can then be immediately remarked.