This classic felt-tip has bright, vivid colors. Porous point features water-based formula, fast-drying ink that won't smear or bleed through paper. Metal reinforced point prevents damage to the tips. Medium, 0.7mm tips. 48 pens in assorted colors: black, blue, red, green, orange, purple, lime, magenta and turquoise. Acid-free. AP Seal, non-toxic.