The Agastat 7000 series STD21Y-N is a durable and reliable snap-on wire marker designed for easy installation. With a straight marker cut and a sleek black legend, this product offers clear and professional cable identification. Suitable for cables with a diameter of 11 to 15.5 mm (.433 to .61 in), the STD21Y-N is perfect for a variety of industrial applications. Made from high-quality materials, this marker ensures long-lasting performance. Stay organized and efficient with the STD21Y-N wire marker, a must-have for any workplace.