The Agastat 7000 STD21Y-M is a high-quality snap-on wire marker designed for efficient cable identification. Featuring a sleek black legend with the letter "M," this marker is perfect for labeling cables in a professional and organized manner. Its straight marker cut allows for easy installation onto cables with a diameter ranging from 11 to 15.5 mm (.433 to .61 in). Made for durability and reliability, the STD21Y-M is an essential tool for any industrial or commercial setting in need of clear and long-lasting cable labeling. Keep your workspace organized and efficient with the Agastat 7000 wire marker series.