A solid paint crayon that contains bold, fluorescent colors to create high-visibility marks. The F Paintstik is ideal for instant identification especially in low light conditions. Vibrant colors for improved visibility Fluorescent marks glow under UV or black light Easy-to-hold, recyclable paperboard holder protects Paintstik for maximum use For high visibility marking in outdoor applications use E® Paintstik® Marking range: -50°F to 150°F (-46°C to 66°C)