This pack contains 30 Black Faithfull Crayon Markers, supplied in a convenient counter display unit for easy storage and dispensing. Black crayons are the most versatile choice for general marking applications, providing excellent contrast on lighter materials and surfaces where high visibility is required. These black marker crayons can be used on most materials including timber, concrete, ceramics and metals, delivering reliable waterproof marks that won't wash away. Their robust formulation is specifically designed to work on oily, wet or dry surfaces, making them ideal for demanding site conditions where other marking tools might fail. Features and Benefits:Pack of 30 black crayons in counter display unitExcellent contrast on lighter materials and surfacesWaterproof marks for permanent identificationPerforms on oily, wet or dry surfacesSuitable for timber, concrete, ceramics and metalsPerfect for general marking and measurement tasks Specifications: Marker Type: