Yellow and white markers contain low halogens Marks with real lead-free paint, dries in 3 minutes. Long-lasting, weather-, water-, and UV-resistant markers with better, brighter coverage compared to ink markers Marks on all surfaces including: metal, wood, glass, plastic, rubber, cardboard, and paper. Durable nib permits fine line marking or bold, thick marks visible from long distances. Replaceable fiber nib assures longer life and complete use of each marker. Improved "flowmatic" valve releases paint on-demand for smooth, continuous marks. Sturdy metal barrel features strong crimped barrel design that prevent leakage while withstanding heavy industrial use. Marking range: -50°F to 150°F (-46°C to 66°C).