Usage Tips:Product Name : Binding Post Terminal Board;Connector Type : Screw TypeBinding Post Color : Black;Plate Color : BlackMaterial : Plastic & Metal;Screw Hole Diameter : 4mm/ 0.16 inchPlate Size : 57 x 57 x 25mm/ 2.2 inch x 2.2 inch x 1 inch (L x W x T);Net Weight : 220gThis terminal board was designed for custom applications, where a replacement of the 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 at home, in hotel, hall or the other places you want to set a speaker.Easy to mout with 4 mounting holes.Package Content: 4 x Binding Post Terminal Board