General description The 50 Piece Premium 4mm Banana Plug Connector Kit includes 25 banana jacks and 25 banana sockets in five vibrant colors. These connectors are designed for excellent contact, wear resistance, and stable performance, making them ideal for speakers, audio amplifiers, and other electrical equipment. Technical specifications Material: Zinc alloy + plastic Connector type: 4mm banana plugs and jacks Color options: 5 colors for color coding Usage Great for connecting speakers and audio amplifiers Easy to plug and unplug Can be used for color coding connections (e.g., red for positive, black for negative) Other information Package Content: 25 x Banana Plugs + 25 x Banana Jacks (5 Colors) Connection method: Rotary knob for screw connection, no soldering required Standard size fits most speakers; wires can be soldered or twisted