uxcell 2 Pairs Black Red Amplifier Terminal 4mm Cable Dia Banana Jack Binding Post Product Name : Binding Post;Thread Dia. : 5mm/ 0.2" Fit Cable Dia.(Max.) : 4mm/0.16";Fit Banana Dia. : 4mm/ 0.16" Overall Size : 48 x 16mm / 1.9" x 0.6" (L*Max.D);Main Material : Metal,Plastic Main Color : Black,Red, Gold Tone;Net Weight : 49g Package Content : 4pcs x Binding Post