Specification: Features:_x000D_1. Red and black conjoined power amplifier binding post, thread tightening, convenient to use._x000D_2. The screw nut is made high grade alloy, which can protect against corrosion and ensure the highest quality audio with no distortion._x000D_3. Color coded black/red for maintaining proper polarity._x000D_4. Applicable to professional power amplifier, stable performance, compact, reliable and durable._x000D_5. Connection mode: use with 4 mm banana plug connection,or directly press cable._x000D__x000D_Specifications:_x000D_Material: Alloy + Plastic_x000D_Quantity: 4PCS, 8PCS, 10PCS (Optional)_x000D_Connection Type: Thread Tightening_x000D_Size: Approx. 3.5 x 1.5 x 4.5 cm / 1.4 x 0.6 x 1.8in_x000D_Weight: Approx. 101-252g_x000D__x000D_Package List:_x000D_4 x Conjoined Terminal_x000D__x000D__x000D__x000D_Note:_x000D_Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Features: 1Red and black conjoined power amplifier binding post, thread tightening, convenient to use 2The screw nut is made high grade alloy, which can protect against corrosion and ensure the highest quality audio with no distortion 3Color coded black/red for maintaining proper polarity 4Applicable to professional power amplifier, stable performance, compact, reliable and durable 5Connection mode: use with 4 mm banana plug connection,or directly press cable PackageList: