BCY manufactures the best bowstring serving material in the archery industry. BCY 3D serving is a great choice for end serving on a bowstring or cable and also serves well to tie in drop away rests, peep sights and nocking points. BCY Halo serving material is crafted from tightly braided spectra for use in high abrasion areas like buss cables on single-cam bowstrings. BCY 62XS Bow String Serving 20% stronger and more durable than standard black and white serving due to a higher percentage of Spectra or Dyneema®. Perform your best with the best material in the industry.