Material : T2 copper , tin plated Advantage : durable Item name : ground buss bar kit Product class : indoor use Material : T2 copper , tin plated Advantage : durableItem name : ground buss bar kitProduct class : indoor useParts : (1) ground buss bar , (2) insulators , (2) mounting brackets , (4) hardware kit , wall attachment kit included.size : 1/4"X4"X9" , 1/4"X4"X12", 1/4"X4"X20".