Manufacturer of all kinds of double taper fly fishing wire. The experienced pro fly angler would love to use this type.* Features: - The belly is located at the center and the 2 ends taper from thick to thin gradually. This also makes the line to be highly economical because once you have finished using one end, you can swith to the other and use it. - This type does not perform as well as WF in regards of cast ability and wind resistance.