This string made from B-55 material is a very forgiving and quiet. Perfect to use on noisy bows or older/self bows that cannot with stand a fast flight string. All of the b-55 strings come in red and black. The loops measure roughtly 2 inches and 1 and a half inches. We marke our strings by the length of the bow so this string will measure about 4 inches shorter than the length marked on your bow. If you have any questions or want to custom order a string call us (812)-276-5430 or email us timberhawkbows@gmail.com