Generic Male/female Ec5 Style Connector w/ 5mm Gold Bullet Plug(pack of 5 Pairs) The raw materials are adopted by the national standard environmental protection material, which conforms to the environmental protection standards of ROHS. The shrapnel is made of beryllium copper material, which is elastic enough and durable without deformation. The plug is plated with 24K genuine gold, and the thickness reaches 0.05 mu m, and the coating will not fall off.The coating thickness ACTS as a protective plug to prevent oxidation and prolong life. Good conductivity and continuous stability. Male/Female EC5 banana gold bullet plug 5mm Positive and negative pole with different round Jack and square Jack design, the appearance of non slip design, more easy to operate