Sold as 36/Pack. Permanent marker writes on paper, metal, glass and plastic. Non-washable ink for permanent results. The blue hue stands out for attention-getting color, and the permanent ink is certified nontoxic for safe use. Waterproof and fade-resistant for dependability. Fine-point tip draws thin lines. Fast-drying and smear proof for clear writing. Stock up with this pack of 36 markers, which is sized for sharing at workplaces and in classrooms. AP-certified nontoxic for safe use.