The STD21Y-F is a durable snap-on cable marker designed for easy and efficient identification in high-temperature environments. Featuring a straight marker cut and a sleek black legend, this marker is part of the Agastat 7000 series known for its reliability. Suitable for cables with a diameter of 11 to 15.5mm (.433 to .61 inches), the STD21Y-F is a versatile solution for organizing and labeling wires in industrial settings. Made of high-quality materials, this product ensures long-lasting performance, making it a must-have for any professional in need of efficient cable management.