The Pentel X100W white permanent marker 12-pack is a heavy-duty industrial marking solution designed for professional use across a wide range of manufacturing and commercial applications. Filled with opaque white china clay pigment ink, it is specially formulated to write clearly on non-absorbent surfaces including rubber tyres, glass, metal, and dark plastics.&.nbsp.Each marker features a robust aluminium barrel and a tough, bonded fibre tip engineered to withstand demanding workplace environments. Equipped with a valve-controlled ink flow mechanism to prevent drying and leakage, the 5.6mm bullet tip produces a bold, highly visible line width of approximately 3.3mm. Key features:12-pack of professional white permanent markers ideal for manufacturing and industrial applications.Opaque white china clay pigment ink providing high-contrast visibility on dark and non-absorbent surfaces.Suitable for marking on various challenging materials such as rubber tyres, glass, metal, and plastics...