... size: 1/8" 1/4" 1/2" 3)CE Certificate Steel Case Gauge 4Z2are high quality dry gauges design to provide ... 3.5", 4", 4.5", and 6", 8", 10",CASE MATERIAL:Steel case, steel black case, steel chrome plated case, steel gold plated case,brass polished case ... 3.5", 4", 4.5", and 6", 8", 10",CASE MATERIAL:Steel case, steel black case, steel chrome plated case, steel gold plated case,brass polished case ...