Our number one goal at Piranha Custom Bowstrings is to give you the best customer service and satisfaction possible. Every string we custom build is pre-stretched to 300 lbs. Using  the industry’s leading Trophy Fibers by BCY, along with 3D End Serving, and #62 Braided Center Serving. To provide you with the highest quality bowstring that will last you thousands of arrows. We stand behind our strings 100%, with a NO peep rotation, NO stretch, NO creep, and, NO serving separation guarantee along with a 90 day warranty on all factory defects.