1.RCA plug 2.the material is zinc 3.plated is nickel,gold RCA plug 1 ten years' experience of rca manufaturer 2 24K gold-plated rca male connector 3 high quality and low price 4 zincRCA plug1 Body: zinc, nickel /golden plated2 Center contacts: brass , gold plated3 Insulator: Teflon/Plastic4 ROSH