Banana plug socket with Red/Black Ring label connects a speaker cable with a banana plug to speaker wire in the wall. Screw type Binding Post with adjustable thumb screws can be used with banana plugs or bare wire. Speaker wire connector with female ports on both sides can connect to speaker wire hidden behind the wall. Gold-plated connectors for high transmission quality. Robust SNAP-IN construction of inserts provides a secure connection; Reusable jack inserts can be easily disconnected and moved when upgrading or redecorating. Color: picture color Material: metal + plastic Package contents: 4 * Banana plugs (2 red and black circles each) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.