b'LUMBER AND TIMBER MARKERSWhether marking rawmaterials in the field or in plant for processing, Markalhas a marker engineered for use on almost any wood surface 38 and for use with grade mark readers. For marking logs, boards, or raw lumber, our lumber crayons are an eco-LUMBER/TIMBER MARKERSnomical and effective way to mark wet, dry, rough, and dirty wood for improved processing and tracking. For use with grade mark readers, our scanning crayons have been engineered with exceptional color and vibrancyto reduce misreads and improve efficiency.'