uxcell 4 Pcs Red Black Plastic Shell 4mm Banana Socket Binding Post Product Name : Binding Post;Material : Plastic, Metal Main Color : Red, Black;Socket Dia : 4mm Thread Dia. : 3.6mm;Size : 33 x 13mm / 1.3" x 0.5"(H*D) Weight : 25g Package Content : 4 x Binding Post