riting with these self-outlining markers! - 12 self-outlining metallic markers - Markers write in silver shimmer with a border of color. - Fine 2mm bullet tip - Permanent ink - Writes on paper, poster board, card stock, and other porous surfaces - Case measures 6" square (15.24 cm). - TO START INK FLOW: With cap on, shake marker. Uncap. Press tip down against writing surface a few times to pump ink into tip, then write. - Recap marker right away when finished and store flat.