Usage Tips:This 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.Product Name: Binding Post Terminal BoardConnector Type: Screw TypeBinding Post Color: Black & RedPlate Color: BlackMaterial: Plastic & MetalScrew Hole Diameter: 4mm/ 0.16 Inch Plate Size: 9.2 x 7.9 x 3.7cm/ 3.6 Inch x 3.1 Inch x 1.5 Inch (L x W x T)Net Weight: 351gPackage Content: 6 x Binding Post Terminal BoardOnly the above package content, other products are not included.Note: 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.