Lumber Crayon, Actuation Type Not Applicable, Casing Material Wood Holder, Dry Time Immediate, Glow-in-the-Dark No, Grade Scanner Compatibility Not Applicable, Hardness Not Applicable, Marking Tip Shape Hex, Maximum Application Temperature 100 Degrees F, Minimum Application Temperature 0 Degrees F, Pigment Color Red, Pigment Material Clay, Pigment Maximum Surface Temperature Not Applicable, Pigment Minimum Surface Temperature Not Applicable, Product Type Lumber Crayon