Brand :SHEVCHENKO50 to 38 orifice Tweeter Speaker Horn Converter Connector. Dual-use small mouth to large mouth: 50 to 38 throat orifice ; 50 to 38 throat orifice.Size: 114mm.The maximum screw hole distance: 109mm,minimum: 90mm .Application: 100 cores to 75 cores.Package : 2pcs.