Marks both on glossy and rough materials, no matter if bright or dark, rusty or oily, hot or freezing cold Most permanent, after few minutes High contrast and opaque markings – even on dark surface Weather & light resistant – ideal for outdoor use Mutable line width from 2 - 8 mm possible With useful quiver cap for perfect one handed handling High quality, smoothly running twist mechanism Chloride-free for marking on stainless steel Temperature resistant markings up to approx. 1000°C