This product is a banana plug. It is made of solid materials. It is safe and durable. It can serve you for a long time without being easily . It is an excellent banana plug that can bring you convenience, allowing you to have a more comfortable experience. Features -Color:Assorted Color -Material: copper -Size: 4.20X1.10X1.10cm/1.65X0.43X0.43in - One-piece welded design, easy to use and not easy to fall off. Compatible with 12AWG to 18AWG speaker wire. you need to do is insert some bare copper conductors into the holes, two set screws ensure a secure wire connection. - Our audio plugs are versatile. 4mm banana plugs make speaker wire installation a breeze, lightweight and portable can use it anywhere. - Can be used in a wide range of A/V receivers, amplifiers, surround sound systems, and is perfect for use with banana wall panels. - Simple in structure, easy to use, not easy to deform, you can use it with confidence. Package list: banana plugs