The golden ratio design of Nu long Chuanxin has a total length of 117 cm, a handle length of 39 cm, a non slip leather rope wrapping method, a comfortable handle, a blade length of 73 cm, a blade width of 4 cm, and a blade thickness of 0.5 cm. It is processed by the manganese steel integrated forging and blue engraving process. The hardness is up to 60 ° and cutting iron does not damage the blade. The sheath material is solid wood wrapped with dragon PU leather, which is necessary for outdoor use