Size: 11/16" Round X 4-5/8" . Hex Shape sold below. Marking range: -20°F to 130°F(-29°C to 54°C). * Certified to meet the specifications of Lucidyne ColorScanŽ Grade Mark Readers. * Certificate of Analysis accompanies each batch. * Each batch tested on Lucidyne ColorScanŽ 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 flourescent colors available in 3 hardnesses. * No time consuming trial and error crayon selection. Sold in boxes of 12. Scan-It Plus Fluorescent Crayon 82$13.80, 12/$151.20Color: Blue MoonOrange SherbertWatermelon RedRed CedarGrasshopper GreenPink LightningEmerald GreenPumpkinRusset BrownSlate GrayPink MarbleTerra CottaMoss GreenLime GreenLemon Yellow Hardness: SoftMediumHard Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 588 or Internet Sales.