24-pack of black permanent markers for home or office; non-toxic, conforms to ASTM D4236 Durable fine point creates bold marks and clean lines—great for writing, doodling, and drawing Quick-drying, waterproof ink; smear proof and fade resistant Solid-black ink promotes clear visibility, especially against a white or light-coloured canvas Works on almost any surface—photos, plastic, cellophane, wood, stone, metal, and glass