Brass O ring terminals for audio modification 0GA to 2GA gold plated1、Durable Brass Materials: Heavy duty screw battery ring terminal connector is exquisitely made of brass with gold plated for maximum durability, not easy to rust, long lasting to use. 2、Excellent Performance: Brass gold plated screw ring power terminals is with high accuracy and high toughness, stable performance and great electrical conductivity. 3、Screw Style Design: Battery ring terminal is professionally designed for screw end to lock the wire directly, eliminating the need for welding and wire locking, convenient for using. 4、Secure Wire Fitness: The heavy duty screw battery ring terminal can greatly make sure tight wire fit, not easy to loose, highly dependable and advantageous in using. 5、Professional Production: Screw battery lug terminal is professionally produced, has undergone extensive quality and safety testing to ensure long service life and strong reliability.