Solid Paint Marker, Actuation Type Not Applicable, Casing Material Paper, Dry Time 12 hr, Glow-in-the-Dark No, Grade Scanner Compatibility Not Applicable, Hardness Firm, Indoor/Outdoor Usage Indoor/Outdoor, Marker Size Group Standard, Marking Tip Shape Round, Maximum Application Temperature 150 Degrees F, Minimum Application Temperature -50 Degrees F, Overall Length 4 3/4 in, Pigment Color Gray, Pigment Material Paint, Pigment Maximum Surface Temperature 150 Degrees F