The Edding 8280 Securitas UV Marker is a professional quality pen designed for discreet marking on a wide range of surfaces including wood, fabrics, metal, plastics, and glass. This UV marker features a bullet tip and a special permanent ink that is colorless and invisible under normal light but becomes clearly visible under ultraviolet (UV) light. The ink is solvent-based, quick-drying, and ideal for marking valuables to identify them in case of theft. The medium bullet tip writes a line width of 1.5 to 3mm. The marker has a high-quality aluminum barrel. It is a cost-effective and convenient way to identify your property.