Features: Experience unparalleledly auditory sound with our Gold Plated Copper Banana Plugs,for audiophiles highly sound transmission. Featuring solid single spring structure, these banana plugs ensure maximumed contacting area and superiorsly elasticity, eliminating noise and enhancing sound. For Auditory engineers, and home theater enthusiasts who demand stable and reliable connection. Perfect for connecting speaker or amplifiers binding posts in home Auditory systems, professional recording studios, and highly home theater setting. From copper with gold plated, these banana plugs offer exceptional durability and conductivity, essential components for Auditory setups. Specifications: Size:about 44x8mm/1.73x0.31in Component: Copper Enter hole： not more than 4mm Quantity：4PCS Package Includes: 4PCS Copper Plated Hifi Banana Plugs note: Due to the problem of lighting effect there might be tolerances in product, please understand. Please allow 0-1cm error due to the measurement