Zebra Hybrid bowstrings feature patented Z-S Twist technology, which virtually eliminates peep rotation. Manufactured with BCY 452x material, Zebra bowstrings are stretch-resistant and extremely durable. Bowhunters and professional archers agree that Zebra Z-S Twist Bowstrings are ultimately better-performing that the competition. Zebra bowstrings will succeed with Mathews, Hoyt, Bowtech, PSE, and any other compound bow model.