The Mike Johnson Polygrass Calf Rope has the feel and body you want from grass rope with the added strength and less stretch from the added poly. Sisal rope with poly center core and lead filled for weight. Treated with a process that gives it that "just right" feel. It's ready to go to the practice pen or the arena. Pre-powdered, hand-tied with a hand-cut, hand-sewn rawhide burner. Diameter: 10.5. 60 thread blue eye - also available in 57 thread red eye. 30' length.