Fast Flite is standard equipment on many quality recurve and compound bows. Increased arrow speeds of 5 to 12 feet per second. Tensile strength is twice that of B-50. Please consult bow manufacturer's specifications for compatibility with your bow. Built from Fast flite material in 18 strand. Sizes up to 44" are for compound bows that require teardrop (regular loops). Sizes 45" and up are for recurve/longbows (large loops). Regular loops in lengths of 34 to 62".