The Agastat 7000 STD21Y-E is a durable and reliable wire marker designed for high-performance applications. Featuring a sleek black legend with the designation "E," this snap-on marker is easy to install on cables with a diameter ranging from 11 to 15.5mm (.433 to .61 inches). Perfect for labeling wires in industrial settings, this product ensures clear and long-lasting identification, helping to streamline maintenance and troubleshooting tasks. Trust the STD21Y-E to meet your labeling needs with precision and efficiency.