Universal and high visibility marking. Suitable for both wet and dry surfaces, designed to mark on a wide variety of surfaces common on the work site. Trade pros won't want to be without this Tracer construction crayon marker set - it contains an assortment of yellow, red and black marker pens for use on many of the most common work site surfaces. Use these Tracer marker pens on wood, plastic, tile, metal, concrete, brick, glass and more - suitable for both wet and dry surfaces, the markers provide a universal and high visibility marking solution for any professional job. * Pack of 12 - includes red, yellow and black marker pens * Crayon markers - suitable for most work site surfaces * Reliable marking - perfect for professional trade use * Bold 3-6mm width tip - for clear and high visibility marking * Versatile use - marks both wet and dry surfaces UNIVERSAL CONSTRUCTION CRAYON MARKERS: Providing universal and high visibility marking, this is an ideal marker for practically all trades. MARKS ON A WIDE RANGE OF MATERIALS: Can be used to mark on a wide array of materials including wood, plastic, tile, metal, concrete, brick and glass. SUITABLE FOR WET AND DRY SURFACES: The TRACER Crayon Markers are designed to mark on a wide variety of surfaces - wet or dry! BOLD TIP: Featuring a bold 3-6mm width tip, the TRACER Crayon Markers are perfect for any job. 12 MARKERS INCLUDED: Pack contains a mixture of colours meaning you have the right colour for perfect visibility on every surface! Contains 6 x Yellow, 4 x Red and 2 x Black Crayons.