The world's standard! Highest quality pigments and clays are extruded under high pressure to form a crayon that will last up to 10 times longer than molded, wax or chalk crayons. Fade-proof, waterproof, smear-proof. Will work on wet or dry wood, metal, concrete and most other surfaces. Each crayon is individually UPC coded. Graphite blend is also recommended for green lumber use.
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