Universal pen writes on almost any surface, including photos, frames, printer's proofs, glass, slides, acrylic and more. Smudge resistant, waterproof ink dries in seconds and smells neutral. Won't dry out, even if left uncapped for days. Superb color brilliancy. Ink can be removed from film with Lumocolor Correction Pen or Mars Plastic Eraser. Global Product Type: Markers, Marker Type: Permanent, Assortment: N/A, Color(s): Black, Blue, Green, Red.