Scan-It Crayons

Certified to meet the specifications of Lucidyne ColorScan Grade Mark Readers. Certificate of Analysis accompanies each batch. Each batch tested on Lucidyne ColorScan Grade Mark Reader. Extremely accurate readability lowers your operating costs. Works on wet or green wood, as well as, wood that contains pitch and sap. Smear resistant. 10 fluorescent colors available in 3 hardnesses. No time consuming trial and error crayon selection. Twelve crayons per box, Twelve boxes per a case. Size: 11/16" Round X 4-5/8" Marking range: -20F to 130F(-29C to 54C).