The STD21Y-MINUS is a high-quality snap-on cable marker designed for efficient and durable wire identification. Part of the Agastat 7000 series, this marker features a sleek black legend on a yellow background, ensuring clear and easy-to-read labeling. With a straight marker cut, it offers a professional and streamlined appearance when applied to cables. Suitable for cable diameters ranging from 11 to 15.5 mm (.433 to .61 in), this marker is versatile and perfect for a wide range of applications. Made for long-lasting performance, the STD21Y-MINUS is a must-have for any project that requires reliable wire and cable identification.