LUMBER CRAYON: This lumber crayon helps remodeling contractors, lumberyard workers woodworkers and professional homebuilders to mark fade-resistant cut lines on different types of woods. QUALITY MATERIAL: Showcasing excellent craftsmanship, this wet wood crayon is made from premium quality lead-free and non-toxic material. The quality construction makes it ideal to use for both indoor and outdoor uses. HIGH VISIBILITY: This non-toxic lumber crayon makes your marking clear and permanent as they embrace a weatherproof and fade-resistant construction. WIDE APPLICATION: The lead-free lumber crayon can be used for a variety of tasks, which include flooring, roofing, trimming and framing. It works efficiently on different treated, frozen, dry and wet lumbers. PRODUCT SPECIFICATION: This Johnson lumber crayon box contains 12 crayons of black color. It is impeccably designed to fit Peterson Holders that helps in preventing crayons from breakage.