Hammond 1455 Series Blue Aluminium Instrument Enclosures – Hammond 1455J1201BU, This blue extruded aluminium instrument enclosure from the Hammond 1455 Series, 122mm length, 78mm width, 27mm height (including end panels), has been designed to house PC boards. Hammond 1455J1201BU Extruded Aluminium Enclosure 122 x 78 x 27mm Blue