BCY 3d bow string serving is a great all around material. With a diameter of .017 it is constructed of 3 ply twisted dyneema or spectra material. It allows for servings to be tight but flexible. 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. The breaking strength is 65lbs and a jig spools contains 120 yards. We also offer 3d serving in 1/4lb and 1lb bulk spools on a pre-order only. We place weekly BCY orders each Monday and usually receive them the following Monday. All 1/4 lb & 1 lb are pre-order only for this product Pre-orders typically arrive in for shipment within 7-10 days of order being placed.