Speaker Wire ConnectorsSound Speaker Wire Connector Welding-free Banana Audio Speaker Banana Connector For 4mm CableAccommodate cable with wire size up to 4mm Accepts 8AWG to 20AWG speaker wire.Screws locking.Plastic shell with black&red colorsProduct name 4mm Banana (Plastic shell)4pcs / lot black+red Speaker Wire Connectors 4pcs/lot Plastic Sound Speaker Wire Connector Welding-free Banana Audio Speaker Banana Connector For 8mm Cable Item Weight 1.76 ounces Item model number BNCZDOJO Package Dimensions 0.39 x 0.39 x 0.39 inches