Gmax make Maintenance Free Earth as per RDSO spec. No. RDSO/SPN/176, consisting the followings : Copper bonded steel electrodes of 6 feet long & 17.2 mm dia with Cu bonding thickness of min. 250 microns and UL listed and marked = 2 nos. Earth enhancement material supplied in sealed bags of min. 10Kgs = 1 nos. Cu-strip 150 X 25 X 6 mm to terminate earth rod = 1no. Cu-strip 300 X 25 X 6 mm (MEEB) = 1 no. Cu-strip 150 X 25 X 6 mm (SEEB) = 1 no.