... : 6000 pairs 5.port:Tianjin,Ningbo,Shanghai Brass Negative and positive battery terminal with 18mm(+) diameter Description 1 ... .brass plated surface2.weight:80g/pair3.inner dia: ... , lead, aluminum), crocodile clamp (iron), and hose clamp (stainless steel, carbon steel).. Brass Negative and positive battery terminal with 18mm(+) diameter