The STD21Y-Q is a high-quality snap-on cable marker designed for easy and efficient identification of wires and cables. Part of the Agastat 7000 series, this marker features a durable construction and a straight marker cut, ensuring long-lasting performance. With a black legend and a yellow background, it offers excellent contrast for easy readability. Suitable for cables with a diameter of 11 to 15.5 mm (.433 to .61 in), this marker is perfect for a wide range of applications. Whether you're organizing cables in a data center or labeling wires in an industrial setting, the STD21Y-Q is a reliable and convenient choice. Keep your cables organized and easily identifiable with this premium cable marker.