This quality Pilot 100 marker contains permanent, oil based ink, which is suitable for use on a variety of surfaces including plastic, metal, wood, card and glass. The vivid ink is long lasting with a high resistance to abrasion. The marker also has a cap off time of 24 hours, and the bold bullet tip writes a 4.0 - 4.5mm line width. This pack contains 20 markers with permanent black ink. Quality marker with permanent, oil based ink Suitable for use on a variety of surfaces including plastic, metal, wood, card and glass Vivid ink has a high resistance to abrasion 24 hour cap off time Bullet tip writes a 4.0 - 4.5mm line width Barrel colour: Black Ink colour: Black Pack of 20