1,Brass Conductor: The conductor is made of high purity refined brass material, with low transmission signal loss, stable transmission rate, good contact and wear resistance 2,Brass and ABS: Use brass, ABS, good electrical conductivity, and processed by high quality technology, corrosion resistant, not easy to oxidize, and ensure stable current transmission 3,Wide Applications: Widely used for electronic instruments, industrial equipment, electronic equipment, inverters, welding machinery, charging generators, ships, RV, etc. 4,Application: Suitable for separation and distribution of trucks, automobiles, solar cells, hardware, electronics, electrical appliances, computers, power regulators, etc. 5,Basic Specifications: The inner hole size of this banana plug is φ4mm, the length is 32mm, and easy to plug and unplug, lightweight, labor saving and time saving