Features BRASS MATERIAL - Made with excellent brass, these sockets have perfect transmission, contact and electrical conductivity performance, plugging and disconnection resistance. PRECISE PERFORMANCE - Made with advanced CNC process technology, this socket is precision. Wide Application The banana connectors can connect ESC or battery with electronic equipment such as RC helicopter, car, truck, etc. Fine Workmanship - These sockets are well made with standard size, flat appearance and easy installation. 30 pieces: there are 30 pieces in the package to meet your needs, suitable for long-term use and to make replacements. Specification: Item Type: Banana Plug Material: Brass Size: approx. 4mm / 0.15 inches Package List: 30 x Banana Connectors Package List 30 x Banana Connectors Plug