Introducing the Agastat 7000 STD21Y-R Snap-On Wire Marker, a must-have for efficient cable identification in any project. This marker, featuring a sleek black R legend, is designed for easy installation with a straight marker cut. Compatible with cable diameters ranging from 11 to 15.5mm (.433 to .61 inches), it offers versatile usage. Perfect for high-reliability applications, the STD21Y-R ensures clear and durable labeling, streamlining maintenance and troubleshooting tasks. Trust in its quality and performance to meet your labeling needs with precision.