Built to last Traditional HP strings use Astro Flight string material, durable D1 end loop serving and superior Crown center serving. Built for todays High Performance (HP) Traditional Bows. Precise adjustable string length. Almost instant "shoot in" time.Excellent arrow speed. Minimal string noise. Clean, crisp and classic looking. Pre stretched. Black and Bronze string w/Black end loops & Black crown center serving. NOTE: This string should only be used on the "fastflight capable" bows.