Applications: Can be used to make markings (such as screw tapping marks) on iron, steel, wood, synthetic resin, glass and rubber surfaces.Functions and features: Uses opaque oil-based pigment, which makes the color vibrant even on top of colors with deep shades.Outstanding light and water resistance.Perfect for outdoor use where it is resistant to wind, rain and thermal environment changes.(Material) Barrel: Aluminum, Cap: POMMaterial (Nib holder): Melamine phenolMaterial (Marker tip): PolyamideCaution: Do not use the product for purposes other than writing or drawing.When using for a prolonged period of time, the marker needs to be well-ventilated and recapped tightly after each use.Keep this product out of the reach of children.Ink may leak when you drop or shake the marker.If you apply too much pressure, the marker tip may be damaged.Do not use this product to write on places where it needs to be erased.As it is a flammable product, please do not use it near the following places.Please note that you may feel uncomfortable if you inhale too much solvent vapors.