Get top performance from your compound or recurve bow with these professional grade, top quality bowstrings. Built from prewaxed Dupont B-50 Dacron. Each strand has a 50 lb. strength and is served with an abrasive-resistance monofilament serving. Sizes up to 44" are for compound bows that require teardrop (regular loops). Sizes 45" and up are for recurve/longbows (large loops).