Bow String Features: 100 Percent polyester similar to Dacron but with better durability andlessstretch. Primarily used for recurves Longbows, but also used on older compound crossbows and traditiol bows without reinforced limb tips. Available in solid colors. Recommended strands:12-16 for recurves Approximate feet per pound waxed:4,300 Spool sizes:1/4 lb