About this item LARGE PACK - Hethrone permanent markers set includes 72 markers for marking, writing, doodling, and all with black ink, huge quantity can keep you using for a long time in daily life. 1MM FINE TIP- The fine tip is durable, is the perfect width for home or office to mark when storing product, it can meet your permanent marking needs on different objects. PREMIUM INK - Our fine point markers use high-quality ink and write clearly, it combines the advantages of waterproof, quick-drying and long-lasting, giving you a good writing experience. WIDE VARIETY of USES - The black markers can be used on the surface of metal, plastic, glass, wood, ceramics and most objects, to meet the needs of different scenarios in your work and life. SAFETY & NON-TOXIC - The permanent markers are safety certified, conform ASTM D-4236 requirements, non-toxic and acid-free, harmless to human body, please rest assured to choose.