Hot Surface Marker, Actuation Type Not Applicable, Casing Material No Casing, Dry Time 12 hr, Glow-in-the-Dark No, Grade Scanner Compatibility Not Applicable, Hardness Firm, Indoor/Outdoor Usage Indoor/Outdoor, Marker Size Group Fine, Marking Tip Shape Flat, Maximum Application Temperature 900 Degrees F, Minimum Application Temperature 150 Degrees F, Overall Length 4 1/2 in, Pigment Color White, Pigment Material Paint, Pigment Maximum Surface Temperature 900 Degrees F