CESS 1/4" Jacks TS and TRS Panel Mount Jack Locking Style D Series Size - 1/4 Inch Female Stereo and Mono/TRS and TS Audio Socket - 6.35mm Stereo and Mono Socket (4 Pack) 1/4" TS and TRS Panel Mount Jack Locking Style Both TS and TRS application design Fully Insulated High Impact Plastic Casing. Red Locking Push Button for Easy Identification Round Hole Cutout Size: 0.928" (23.5mm) Package Included 4 Pieces