Hot Surface Marker, Actuation Type Not Applicable, Casing Material Paper Wrapper, Dry Time 12 hr, Glow-in-the-Dark Yes, Grade Scanner Compatibility Not Applicable, Hardness Firm, Indoor/Outdoor Usage Indoor/Outdoor, Marker Size Group Standard, Marking Tip Shape Flat, Maximum Application Temperature 400 Degrees F, Minimum Application Temperature 1,600 Degrees F, Overall Length 4 3/4 in, Pigment Color White, Pigment Material Paint, Pigment Maximum Surface Temperature 1,600 Degrees F