ITEM NAME:Black recessed steel 1/4" headphone jack plate rca binding post board dish `3C Product Description Brand new steel speakon jack plate Material: Steel, punched Color: Black Surface finish: Powder coated Dimension: 137*90mm  (5.39*3.54") Panel cut out:110*63mm (4.33*2.48") Depth: 15.50mm (0.61") Suitable for mounting dual 1/4" headphone jacks,RCA,binding post connectors Panel cut diameter=24mm(0.94") Please check the following picture for more dimensions: Quantity: 1 plate/lot.Panel cut out:110 63mm (4.33 2.48"). Surface finish: Powder coated. Material: Steel, punched.