ITEM NAME:4x Rhodium Plated HIFI Speaker Amplifier Terminal Binding Post Socket Red& Black Description Specification: 100% brand new and high quality HIFI Amplifier Speaker Terminal Binding Post HI-END audio binding post High quality eutectic cast copper conductor Rhodium plated for best signal transfer 20mm long screw. External diameter is 8mm. Suitable used in 1.5mm~7mm MDF wood or Amp back panel Housing: Fog black finished eutectic copper alloy Nylon [red/black] and polycarbonate [clear] insulation Connections: Screws Locking Identification: Red, Black Package Included: 4pcs x Binding Post (2x Red+2x Black) Note: Due to light and screen difference, the item's color may be slightly different from the pictures. Please allow 1-10mm deviation due to manual measurement..Rhodium plated for best signal transfer. Housing: Fog black finished eutectic copper alloy. High quality eutectic cast copper conductor. Due to light and screen difference, the item's color may be slightly different from the pictures.