The Staedtler Lum color 318 Fine Permanent Marker Pen Set (8 assorted colors) is a high-quality, versatile marker set designed for reliable permanent marking across many surfaces including paper, plastic, metal, glass, CDs/DVDs, and overhead transparencies — ideal for office, school, creative projects, and professional use. These pens feature a fine 0.6 mm tip that produces clearly defined, neat lines suited to writing, labeling, diagrams, and detailed marking tasks. Each marker uses fast-drying, permanent low-Oduor ink that is smudge-proof and waterproof, helping ensure lasting, legible results once dry. The set includes eight vibrant shades (such as black, blue, green, red, yellow, orange, purple, and brown), making it useful for color-coding, organizing, and creative work. These pens are also dry-safe (can be left uncapped for extended periods without drying up) and airplane-safe with pressure-equalized barrels, providing dependable performance in a variety of environments.