Features:This terminal box with 2 mounting holes isdesigned for DIY applications, where a replacement of the original speakerboard is required.Simple installation, it is used to installon the backside of the speaker as an amplifier. Support direct wiring, Y fork,straight banana head and bent banana head.Pure copper plated wiring terminal,beautiful and high quality, effectively avoid from corrosion and rustiness.3.8MM thicken base plate for reducing theresonance of wire box.Wide compatibility, can be used to diameterbelow 5mm of cable, or Banana head plug, suitable for home, hotel, hall or theother places you want to set a speaker.Specifications:Color: BlackMaterial: ABS Base + Copper TerminalMounting Holes: 2Base Plate Thickness: Approx. 3.8mmScrew Holes: Approx. 4mmWiring Terminal Hole: Approx. 3.8mmBinding Post Diameter: Approx. 12mmSize: Approx. 92 x 80 x 35mm / 3.6 x 3.1 x1.4inPackage Weight: 74gPackage List:1 x Speaker Terminal Box (Speaker is NOTincluded.)1 x Screws Kit