The Agastat 7000 series STD17Y-R is a high-quality black snap-on cable marker designed for efficient and durable wire identification. Featuring a straight marker cut, it is compatible with cable diameters ranging from .335 to .452 inches (8.5 to 11.5 mm). The clearly labeled "R" legend ensures easy and accurate identification, making it ideal for a wide range of applications. Made for convenience and reliability, this product is a must-have for any organization in need of efficient labeling and identification solutions.