Thomas & Betts WC7S wire marker cards provide a reliable solution for identifying wires in industrial and commercial settings. Constructed from a durable vinyl-coated cloth, these cards resist abrasion, oil, water, and dirt, ensuring long-lasting legibility. The cards feature solid numbers with a legend of 7 and are packaged in convenient multiples for easy ordering. For 3/4 inch length markers, substitute the last 'S' in the part number with a 'D'. These markers are a vital component for maintaining organized and efficient electrical systems.