Ellami 20pcs Black and Red Plastic Shell Speaker Terminal Binding Post Power Amplifier Dual 2-way Banana Plug Jack Package included: 20pcs banana binding post Screws locking, no Soldering Gold plated Hole Dia : 4mm/ 0.15"; Size : 41 x 33 x 15mm/ 1.6" x 1.3" x 0.6" (L*W*T) 100% Brand new and high quality