4 Pcs banana plug binding post terminal connector socket dual female banana plug Description: Dual Female Banana Plug Terminal Binding Post for Speaker Amplifier. Dual female banana socket plug. One end for 5mm male thread connector, other end for 4mm banana socket. The bining post is ideal for demanding speaker enclosure applications and amplifier.   Specifications: This connector is made by Alloy (Non-Magnetic). Color coded plastic insulation jacket, for easier recognition Screws locking, no soldering. 100% brand new and high quality. Item type: speaker plug Material: Aluminum Alloy Color: black+red Plug diameter: 4mm Open hole diameter: 12mm Width: 34.5mm Height: 40mm   Package Includes: 4 x speaker plug