BCY B55 dacron bow string material is a top choice for traditional longbow and recurve bowstrings. B55 is 100% polyester with characteristics similar to dacron but with better durability and lower stretch. It is available in solid colors. B55 dacron is also a top material for older recurve or teardrop crossbows. While it is a great choice for older teardrop compounds it is not to be used on today's high performance compound bows. Normal strand count is 12-18 for traditional bows and 24-32 for crossbows. It is offered in 1/4lb and 1lb spools. 1lb spools are pre-order only. We place weekly BCY orders each Monday and have them the following Monday. 1 lb. are pre-order only for this product Pre-orders typically arrive in for shipment within 7-10 days of order being placed.