Product Name : Binding Post Terminal Board;Connector Type : Screw TypeBinding Post Color : Black;Plate Color : BlackMaterial : Plastic & Metal;Screw Hole Diameter : 4mm/ 0.16"Plate Size : 57 x 57 x 25mm/ 2.2" x 2.2" x 1" (L*W*T);Net Weight : 55gThis terminal board was designed for custom applications, where a replacement of the original speaker board is required.Simply press down the terminals and insert speaker wire for direct contact.Rear side requires Spade Connectors, Mini Spade Connectors or direct soldering of a speaker wireSuitable for using , in hotel, hall or the other places you want to set a speaker.Easy to mout with 4 mounting holes.Package Content: 1 x Binding Post Terminal BoardNote:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.