... 3.5", 4", 6" 2)Connection size: 1/8" 1/4" 1/2" 3)CE Certificate Steel Case Gauge 4Z2are high quality ... 4.5", and 6", 8", 10",CASE MATERIAL:Steel case, steel black case, steel chrome plated case, steel gold plated case,brass polished case, all this can ... 4.5", and 6", 8", 10",CASE MATERIAL:Steel case, steel black case, steel chrome plated case, steel gold plated case,brass polished case, all this can ...