The Permanent Marker Pen is a versatile writing and labelling tool suitable for offices, schools, warehouses, workshops, laboratories and logistics operations. Its permanent ink produces clear, durable markings on common surfaces such as paper, cartons, labels and selected plastics and metals. Typical specifications: bullet tip; approximately 1–3 mm line width depending on angle and brand; alcohol-based or comparable permanent ink; capped barrel; colours commonly available in black, blue, red and green. Surface compatibility should be tested where necessary. Gaslo and Keyite permanent markers are currently listed in Kenya in 12-piece packs.