This is a listing for two pairs of pure copper BFA-type solderless banana plugs. They are made with high precision and a solid construction, giving them a high-quality feel. Solderless connections allow for high-purity sound quality. In my personal opinion, the sound has a core and is a focused, straight sound. However, aging is necessary. How to use: Directly secure the cable by tightening the two set screws. After securing with the set screws, you can also use heat shrink tubing instead of the cylindrical case for a simpler and easier-to-use plug. Manufacturer: CMC Product Name: BFA Type Banana Plug Material: Copper (plug part) Certification: ROHS certified Size: See photo