1.3series (3/1A,3/2A,3/3A)Line Jack Unit 2.telephone box,telephone connector 3.ABS material 4.Size:86x86x8.2mm 3series (3/1A,3/2A,3/3A)Line Jack Unit(telephone box,telephone connector)3/1A,Single Full Master3/2A,Single PABX Master3/3A,Single Secondary3u"~50u" gild plating availableABS materialSize:86x86x8.2mmBack box size:86x86x32mm availableSTPA230 or 2R230 for choicesOME service available ...