Marking Supplies Fluorescan Crayons PreviousLumber Crayons NextRailroad Chalk Fluorescan Crayons Fluorescan Crayons $18.00 Designed to mark on lumber for use with U.V. equipment and optimizing systems. 4-3/4" x 11/16" round shape w/o paper covering. Available in two very popular colors. Color: Select Color RedOrange Red Orange Quantity: Add To Cart Facebook0 Twitter