Features Non-electronic and long service life. Remain good quality after lightening stroke. Metal composition of copper and steel brings good electrical conductivity and rust resistance. Easy to install and use. Specifications Material of lightening rod: high-quality carbon steel with copper coating. Size of lightening rod : 0.55m Material of ground rod: high-quality carbon steel with copper coating. Size of ground rod: 1m Connecting wire: BVR16mm2*3m Origin: CHINA