uxcell 10 Pcs Speaker Amplifier Black Red Housing 3.5mm Socket Binding Post Connector Product Name : Binding Post;Material : Plastic, Metal Main Color : Black, Red;Thread Dia. : 3.5mm/ 9/64" Size : 33 x 11.5mm/ 1.3" x 0.5"(H*D) Net Weight : 50g Package Content : 10 x Binding Posts